The table below relates to a study where infants listened to three types of ‘music’ in utero and their advancement to crawling/walking was then observed and categorized as either early, on time, or late. The goal of the study was to determine if there was a statistically significant association between music in utero and time of advancement to crawling/walking in infants. Advancement to Crawling/Walking Row Sample Sizes Music In Utero Early On Time Late N Mozart(Piano Sonata) 50.8% 30.2% 19.0% 63 Philip Glass (minimalist music) 40.0% 38.3% 21.7% 60 White Noiseand Silence 17.9% 21.1% 61.0% 44 The table above provides row percentages and sample sizes. For example, 50.8% of ‘Mozart’ infants have ‘Early’ advancement to crawling/walking and there are 63 total ‘Mozart’ infants. a.Based upon the row percentages provided, fill in the contingency table below with the approximate cell counts, rounding to the nearest whole number. Advancement to Crawling/Walking Music In Utero Early On Time Late Mozart(Piano Sonata) Philip Glass (minimalist music) White Noiseand Silence Do the data indicate an association between music in utero and time of advancement to crawling/walking in infants? Conduct an appropriate hypothesis test to answer this question using a 0.05 significance level. Provide the hypotheses, test statistic(s), p-value(s), and a formal conclusion. (Hint: Use Chi-Square test).

Answers

Answer 1

Answer:

Compare your info

Explanation:

Read everything carefully and compare your info and data to find the best solution.

Answer 2

Since the p-value is greater than the significance level of 0.05, we fail to reject the null hypothesis. There is insufficient evidence to conclude that there is an association between music in utero and time of advancement to crawling/walking in infants.

What is hypothesis?

A hypothesis is an explanation proposed for a phenomenon. The scientific method requires that a hypothesis be testable in order for it to be considered a scientific hypothesis.

Advancement to Crawling/Walking Music In Utero Early On Time Late

Mozart(Piano Sonata) 32 19 12

Philip Glass (minimalist music) 24 23 13

White Noise and Silence 8 9 27

To test for association between music in utero and time of advancement to crawling/walking in infants, we can use a chi-square test of independence.

The null hypothesis is that there is no association between the two variables, and the alternative hypothesis is that there is an association.

The test statistic is calculated as follows:

χ² = Σ (Oij - Eij)² / Eij

where Oij is the observed frequency in cell (i,j) and Eij is the expected frequency in cell (i,j) under the null hypothesis.

The expected frequencies can be calculated by multiplying the row and column totals and dividing by the grand total.

The degrees of freedom for the test are calculated as (r - 1) x (c - 1), where r is the number of rows and c is the number of columns.

Using a significance level of 0.05, the critical value for the chi-square test with 4 degrees of freedom is 9.488.

The calculations for the test statistic and p-value are shown below:

χ² = (32-25.81)² / 25.81 + (19-20.18)² / 20.18 + (12-16.01)² / 16.01 + (24-24.24)² / 24.24 + (23-21.68)² / 21.68 + (13-14.08)² / 14.08 + (8-12.18)² / 12.18 + (9-9.08)² / 9.08 + (27-22.73)² / 22.73 = 4.191

The degrees of freedom are (3-1) x (3-1) = 4.

Using a chi-square distribution table or calculator, we find that the p-value for the test is 0.241.

Thus, as we cannot reject the null hypothesis because the p-value is greater than the significance level of 0.05. There is insufficient evidence to conclude that there is a link between music in utero and the age at which infants begin crawling/walking.

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Related Questions

Why use needle loop to prepare fungi slide ?​

Answers

Answer:

Needle loop is used to inoculate microorganisms.

Explanation:

Inoculation of microorganisms in a given culture media involves application of substances which may be chemicals or a food source to the microbes to ensure its survival. It helps in the growth of the organisms for further analysis.

The loop is usually flamed to kill foreign organisms as this may contaminate which may result in altering the reactions and observations of the study.



Welcome to week 4!

This week we are learning about motivation! In the health care field, motivation is pivotal to organizational success. Effective leaders know what motivates their subordinates achieve success.

To meet discussion expectations, please complete Steps 1-3 promptly.

Discussion Expectations
Follow the 3-Step Plan and Student Checklist to meet the Discussion Grading Rubric expectations.

Due Wednesday at 11:59 pm EST.

Step 1: Read the Discussion Background:

Ralph has been working in the billing department of the medical plaza for several years. He recently applied to a manager position in his department. Ralph believed he was the most qualified applicant and was surprised when they awarded the position to his co-worker, Gina. Ralph feels that Gina is less qualified than him and incapable of being a good manager. Angry about not earning the promotion, Ralph decides to not cooperate with Gina and make work difficult for her. He wants to show the others that he should have received the promotion over her.

Gina is very happy with her new position and the organizational changes. However, she can tell that Ralph is not very happy with her promotion.

Step 2: Create a new thread and answer all three parts of the initial prompt below:

From Gina’s perspective, what can she do to help Ralph with the change in management?
Imagine you are Ralph’s co-worker. What advice would you give him?
Explain the importance of having a diversity work environment.

Answers

It is a incomplete question. The complete question is as follow:

Step 1: Read the Discussion Background:

Ralph has been working in the billing department of the medical plaza for several years. He recently applied to a manager position in his department. Ralph believed he was the most qualified applicant and was surprised when they awarded the position to his co-worker, Gina. Ralph feels that Gina is less qualified than him and incapable of being a good manager. Angry about not earning the promotion, Ralph decides to not cooperate with Gina and make work difficult for her. He wants to show the others that he should have received the promotion over her.

Gina is very happy with her new position and the organizational changes. However, she can tell that Ralph is not very happy with her promotion.

Step 2: Create a new thread and answer all three parts of the initial prompt below:

From Gina’s perspective, what can she do to help Ralph with the change in management?

Imagine you are Ralph’s co-worker. What advice would you give him?

Explain the importance of having a diversity work environment.

Answer:

From Gina’s perspective, she could help to Ralph to understand the need to work together. It is a challenge and represents an opportunity to improve the performance of Ralph.  

My advice he needs not to be so self-centered and closed minded for advancing in his work (and life).

A diverse work environment is better to create customized products for customers, which are identified with the ethical values of the company. The companies are better adapted to rapid changes in the needs of customers. Moreover, companies with greater diversity are less likely to suffer judgments because they have higher empathy skills related to social equity, democracy, human rights and antiracism.

Perfect pitch is the ability to identify musical notes correctly without hearing another note as a reference. The probability that a randomly chosen person has perfect pitch is 0.0005.

Required:
a. If 20 students at Julliard School of Music art tested, and 2 are found 10 Moe perfect pitch, would you conclude at the .01 level of significance that Julliard students are more likely than the general population to have perfect pitch?
b. Show that normality of the sample proportion p should not be assumed.

Answers

Question:

Perfect pitch is the ability to identify musical notes correctly without hearing another note as a reference. The probability that a randomly chosen person has perfect pitch is 0.0005.

Required:

a. If 20 students at Julliard School of Music art tested, and 2 are found to have perfect pitch, would you conclude at the .01 level of significance that Julliard students are more likely than the general population to have perfect pitch?

b. Show that normality of the sample proportion p should not be assumed.

Answer:

See explanation below

Explanation:

Given:

Sample size, n = 20

Probability that a chosen person has perfect pitch = 0.0005

x

Level of significance = 0.01

a) Let's find the probability of 2 or more people with perfect pitch using bimonial distribution.

P(2 or more with perfect pitch ) =

P(x≥2) = 1 - P(x≤1)

P(x≥2 | n=20, p'=0.0005) = 0.00005

Since the probability of getting 2 or more people with perfect pitch, 0.00005, is significantly lower than the level of significance, 0.01, we conclude that Julliard students are more likely than the general population to have perfect pitch.

b) For normality to be assumed,  [tex] n * \pi _0 [/tex] should be ≥5 for normal approximation.

Since [tex] n * \pi _0 [/tex] is too small, normality cannot be assumed.

A physician orders Lanoxin elixir qd for an 81-pound child based on 3.4 mcg/ kg/day. Lanoxin (digoxin) Pediatric Elixir is 50 mcg (0.05 mg)/mL. What volume should be administered per dose?

Answers

Answer:

Therefore 2.5 ml of Lanoxin (digoxin) Pediatric Elixir is to be administered to the child daily

Explanation:

The child weighs 81 pound. The weight of the child is needed to be converted from pound to kg.

1 kg= 2.2 pound

Therefore 81 pound = 81/2.2 kg = 36.8 kg

Since the child is to be administered bases on 3.4 mcg/ kg/day, the volume of Lanoxin elixir qd to be administered to the 81 pound (36.8 kg) in one day = 36.8 kg × 3.4 mcg/ kg/day = 125.12 ≅ 125 mcg

Lanoxin (digoxin) Pediatric Elixir is 50 mcg (0.05 mg)/mL, therefore 125 mcg = 125 mcg / 50 mcg/ml = 2.5 ml

Therefore 2.5 ml of Lanoxin (digoxin) Pediatric Elixir is to be administered to the child daily

The consumption of milk by individuals of a population is normally distributed. If you are a member of this population consuming milk, then: 1. If you have a standard score of Z = 2, what percentage of the population has scores greater than you? 2. If you have a standard score of Z = - 2, what percentage of the population has scores greater than you? 3. If you have a standard score of Z = 1, what percentage of the population has scores less than you? 4. If you have a standard score of Z = 1, what percentage of the population has scores farther away from the population mean (in either direction) than you? 5. If you have a standard score of Z = -1.7, what percentage of the population has scores farther away from the population mean (in either direction) than you? 6. If you have a standard score of Z = -1.7, what percentage of the population has scores greater than you?

Answers

Answer:

1. 2.28%

2. 97.72%

3. 84.13%

4. 31.74%

5. 8.92%

6. 95.54%

Explanation:

1. A z score of 2 means has a proportion of the population of 0.9772 below

Therefore, the percentage of the the population that have an higher score = (1-0.9772)×100 = 2.28%

2. A z score of -2 means the percentage of the the population that have an higher score = (1-0.0228)×100 = 97.72%

3. A z score of 1 means the percentage of the the population that have a lesser score = (0.8413)×100 = 84.13%

4. A z score of 1 means the percentage of the the population that have a higher score = (1-0.8413)×100 = 15.87%

The population that have a lesser z score than -1 = 0.1587×100 = 15.87%

Therefore. the total percentage of the population that has scores farther away from the population mean in either direction = 2 × 15.87 = 31.74%

5. Where the z score = -1.7, we have;

The proportion lesser = 2×0.0446×100 = 8.92%

6. The percentage of the population that has a z score > -1.7 is presented as follows;

The proportion that have a z-score<-1.7 = 0.0446

Therefore, the proportion of the population that have a z-score more than -1.7 = 1 - 0.0446 = 0.9554

Hence the percentage of the population that has a higher z-score = 100×0.9554 = 95.54%.

On average, people need about 2,000 calories a day to provide energy for
their bodies.
True or false?

Answers

It depends really women need about 1,600-2,400 and men need 2,000-3,000

Entre 1500 y 2000 calorias al día

The coagulation factor that has a pivotal rule in coagulation cascade is?

Answers

Answer:

Factor X

Explanation:

Factor X plays a pivotal role in blood clotting at the point of convergence of the two coagulation pathways. Accordingly, several rare mutations in the factor X gene have been identified that give rise to bleeding tendencies of variable severity.

[tex]\huge\mathcal\red{AnSwEr }[/tex]

prothrombin

Activated thrombin leads to cleavage of fibrinogen into fibrin monomers that, upon polymerization, form a fibrin clot. Therefore, activation of prothrombin is crucial in physiological and pathophysiological coagulation.

what is the answer?

Answers

Answer:

water

Explanation:

So like as a kid growing up, my moms answer to everything was water like if i scraped my knee boom water fixes everything so like why cant water fix this disease idk i have no clue what the answer is but if you can find the cure just try my mom secret weapon WATER!

A client is a devout jew.what are two things that the nurse aide can do to make him comfortable?

Answers

Answer:

a, e

Explanation:

Ensure the facility food service knows he should get kosher meals.

ensure his medical procedures are not scheduled on the sabbath

A hospital is implementing a Hospital Incident Command System (HICS) for a disaster preparedness plan for the entire health system. Which resource can the staff educators use to assist with the education of health care providers who work within the system

Answers

Answer: Occupational Safety and Health Administration (OSHA).

Explanation:

Hospital incident Command system (HICS) is a foundation in the health sector that was developed in California for the purpose of managing emergencies and to be able to confront a wide variety of operational and fiscal challenges on a daily basis. The resources which the Staff educators can use to assist with the education of health care providers who work within the system is Occupational Safety and Health Administration (OSHA).

Occupational Safety and Health Administration (OSHA) provides employers, managers, supervisors, and workers with:

- Knowledge and skills needed to do their work safely and avoid creating hazards that could place themselves or others at risk.

- Awareness and understanding of workplace hazards and

- How to identify, report, and control these hazards.

This makes it an important resource for the staff educator to make use of for a disaster preparedness plan for the entire health system.

A client who follows the islamic faith has been hospitalized what kind of medicarion would rhis client likely refuse? Medication
With beef ingredients
Medication with pork ingredients
Medication with hala ingredients or
Medication with kosheR ingredients ?

Answers

Answer:

Medication with pork ingredients

Explanation:

Medication with pork is the answer, in the Islamic faith Muslims don’t eat pork.
Beef would be Hindu related
Kosher would be Jewish related

What can you use to suppress nighttime asthma

Answers

Answer: In addition to taking asthma medications as prescribed, here are seven steps you can take to lower your chances of having a nighttime asthma attack:

Clean your bedroom regularly. Wash your bedding in hot water weekly. Invest in dust-proof mattress and pillow protectors. Invest in a humidifier. Don't sleep with petsChoose allergy-free linens.Sleep on a slight incline.

Explaation:

can u intubate someone with a pen?? any surgeons here help

Answers

Yes you can but there are risks

Answer:

it only can be handled by the professional doctors

Explanation:

if a beginner tries it almost pushing the patient towards dead

u can replace straw

if a nursing assistant sees a resident who is not on his assignment sheet but who needs help, what should the NA do?​

Answers

Answer:

An NA will receive assignments to perform tasks, care, and other duties for specific residents. If the NA sees a resident who needs helps even if the resident is not on their assigned sheet, the NA should provide the care.

Explanation:

Sorry if it does not explain that well.. I got this from Google... But at least I tryed.

The nursing assistant must give the needed care to them even if the resident is not being assigned in her area or assignment sheet.

Who is a nursing assistant?

The person who assists with nursing duties in patient care including help with grooming, bathing, feeding, and activities of daily life is referred to as a nursing assistant.

As in the given scenario, the nursing assistant should give the needed care to them even if that resident is not being assigned in her area or assignment sheet.

Thus, this can be the way of treating the needy even in case where resident is not being assigned in her area or assignment sheet.

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25. Within the autonomic nervous system, preganglionic fibers leave the CNS and then synapse on
a) postganglionic synapses.
b) visceral reflex responses.
c) motor neurons.
d) ganglionic neurons.
e) afferent neurons.

Answers

C. motor neurones ......

Within the autonomic nervous system, preganglionic fibers leave the CNS and then synapse on postganglionic synapses. Thus, the correct option is A.

What is the Autonomic nervous system?

The autonomic nervous system may be characterized as a command system that performs largely unconsciously and controls bodily operations, such as the heart rate, digestion, respiration, etc.

The autonomic nervous system regulates the function by operating the information at the preganglionic fibers which then leave the central nervous system of the body and then synapse on the postganglionic synapses of the peripheral nervous system.

Therefore, within the autonomic nervous system, preganglionic fibers leave the CNS and then synapse on postganglionic synapses. Thus, the correct option is A.

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A multinational pharmaceutical company is faced with the ethical dilemma of telling the general public the truth about a mishap in the company's drug labelling which has resulted in the death of four unborn children and leaves many more at risk if the drugs are not retrieved from the market immediately. But the challenge the company faces is that admitting this truth could attract crippling legal charges drastic reduction in patronage and reputation crisis. Give a reasoned ethical advice to the company showing clearly the Ethical basis of your advice the challenges you envisaged and how to deal with the identified challenges.​

Answers

Answer:

   

When there is an Ethical issue, there is no substitute for doing the right thing. To try avoiding potentially undesirous consequences as a result of doing correcting one's mistakes is more damaging in the long run.

First, it starts internally. When employee of such company find out that the management and stakeholders have compromised on the standards of the ethics of integrity, it creates an excuse for them to do likewise and may even become too difficult to manage as it may become a source of blackmail in the short or long run.

My advice to the company is to quickly put out a campaign against the drug which is killing people.

The primary reason why the company is in business in the first place is to save lives by creating drugs that help to do so. To keep quiet in the face of this mistake is to go against everything it stands for.

Yes, it is possible for legal charges to follow. However, as a multinational, it is expected that they have anticipated and made some preparations for this by way of instituting Insurances such as product liability and or errors and omissions which help to reduce the liability of the company in the event of this kind of issues as well as provide monies for compensating the affected individuals and families.

The company will, of course, have to notify it's insurers immediately.

History shows that a public apology has been shown to work in similar circumstances and can help to douse (though not eliminate completely) the onslaught against its reputation that would follow when it makes the announcement.

Legally, when an issue of tort such as this arises, the best bet is for the company to quickly settle out of court if possible.

Cheers!

If someone is bitten by a poisonous spider, which neurotransmitter causes muscle spasms and
weakness?

Answers

Answer:

hope it helped

Explanation:

Acetylcholine is a chemical messenger, or neurotransmitter, that plays an important role in brain and muscle function. Imbalances in acetylcholine are linked with chronic conditions, such as Alzheimer's disease and Parkinson's disease. Acetylcholine was the first neurotransmitter discovered

A certain type of ship has two tanks in its engine. Each tank contains a different type of fuel. When the engine turns on, the same amount of energy is transferred out of both fuels why did fuel 1 change phase, but fuel 2 stayed the same? Explain what happened to the molecules of both fuels

Answers

Answer:

Fuel 1 changed phase because the energy drawn from it dropped its temperature below the transitional temperature that causes a phase change, fuel 2 still has its temperature well above the transitional temperature required to change phase.

Explanation:

For a substance to change phase, a transitional temperature has to be reached. This is because, the temperature of substances generally indicates the average kinetic energy of its molecules. An increase in energy input to the system will result in a change to a more mobile phase like from solid to a liquid state or from a liquid state to a gaseous state state, while taking energy from the system will cause a transition to a less mobile phase like gas to liquid or liquid to solid state.

It can be deduced that Fuel 1 changed phase due to the fact that the energy drawn from it dropped its temperature below the transitional temperature which caused a phase change.

On the other hand, fuel 2 has its temperature above the transitional temperature that is required to change phase.

It should be noted that for a substance to change phase, then a transitional temperature has to be reached. This is due to the fact that the temperature of substances indicates the average kinetic energy of their molecules.

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A claim put forth by some purveyors of health foods is that vitamins obtained from natural sources are more healthful than those obtained by chemical synthesis. For example, pure L-ascorbic acid (vitamin C) extracted from rose hips is better than pure L-ascorbic acid manufactured in a chemical plant. 1) Are the vitamins from the two sources different? ______________ 2) Is Synthetic Vitamin C as Good as the Natural Vitamin? ____________ 3) Can the body distinguish a vitamin’s source?

Answers

Answer:

1) Are the vitamins from the two sources different? not really

2) Is Synthetic Vitamin C as Good as the Natural Vitamin? yes

3) Can the body distinguish a vitamin’s source? the difference, if any, is so insignificant that human bodies cannot distinguish them.

Explanation:

Even though synthetic vitamins are artificial (created in a lab), it doesn't mean that they are harmful. The problem is that most synthetic vitamins are not useful either.

But in some cases, like vitamin C, the effects of synthetic or natural vitamin C are virtually identical and the body will not distinguish between them. Some studies ave shown a very small and insignificant differences, but they are minimum. If you lack vitamin C in your diet, taking synthetic vitamins is a good idea.

Other Questions
RST is dilated with the rule DT,1/3 (x, y), where the center of dilation is T(3, 2). The distance between the x-coordinates of R and T is . The distance between the y-coordinates of R and T is . R' is from T, so the coordinates of R' are . Tiptop Flight School offers flying lessons at a small municipal airport. The school's owner and the manager have been attempting to evaluate performance and control costs using a variance report that compares the planning budget to actual results. A recent variance report appears below: Tiptop Flight School Variance Report For the Month Ended July 31 Actual Results Planning Budget Variances Lessons 155 150 Revenue $33,900 $33,000 $900 F Expenses: Instructor wages 9,870 9,750 120 U Aircraft depreciation 5,890 5,700 190 U Fuel 2,750 2,250 500 U Maintenance 2,450 2,330 120 U Ground facility expenses 1,540 1,550 (10) F Administration 3,320 3,390 (70) F Total expense 25,820 24,970 850 U Net operating income $8,080 $8,030 $50 F After several months of using such variance reports, the owner has become frustrated. For example. she is quite confident that instructor wages were very tightly controlled in July. but the report shows an unfavorable variance. The planning budget was developed using the following formulas, where q is the number of lessons sold: Cost Formulas Revenue $220 q Instructor wages $65 q Aircraft depreciation $38 q Fuel $15 q Maintenance $530 + $12 q Ground facility expenses $1,250 + $2 q Administration $3,240 + $1 q Required: 1. Should the owner feel frustrated with the variance reports? Explain. 2. Prepare a flexible budget performance report for the school for July. 3. Evaluate the school's performance for July. Find the length of a. The length of the of the unknown leg is? Monique made several batches of soup for a potluck supper. Each batch required 3/4 of a pound of potatoes, and she used a total of 6 1/2 pounds of potatoes. How many batches of soup did Monique make?Which division and multiplication problems could represent this scenario? Check all the apply.A)3/4 divided by 13/2B)13/2 divided by 3/4C)3/4(13/2)D)13/2(3/4)E)13/2(4/3) 1. Find the volume of the cylinder height: 8mradius: 3 mwith the explanation if possible Three sheets of plastic have unknown indices of refraction. Sheet 1 is placed on top of sheet 2, and a laser beam is directed onto the sheets from above so that it strikes the interface at an angle of 26.50 with the normal. The refracted beam in sheet 2 makes an angle of 31.70 with the normal. The experiment is repeated with sheet 3 on top of sheet 2, and with the same angle of incidence, the refracted beam makes an angle of 36.70 with the normal. If the experiment is repeated again with sheet 1 on top of sheet 3, determine the expected angle of refraction in sheet 3? Assume the same angle of incidence. Graham Petroleum produces oil. On May 1, it had no work-in-process inventory. It started production of 244 million barrels of oil in May and shipped 216 million barrels in the pipeline. The costs of the resources used by Graham in May consist of the following: Materials $6,000 Million Conversion Cost (Labor and overhead) $7,968 Million Required: The production supervisor estimates that the ending work-in-process is 60 percent complete on May 31. Compute the cost of oil shipped in the pipeline and the amount in work-in-process ending inventory as of May 31. (Do not round intermediate calculations. Enter your answers in millions. For example, enter "1" instead of "1,000,000".) Which correctly describes the 10 amendments What were two major issues faced by the delegates at the opening of the Constitutional Convention of 1787? What are script plugins?GIMP's default list of script fontsa way to clean up GIMP's filters and delete the ones you don't wanta way to add features that aren't present in the default GIMP installationthe Text tool's list of tool options how many total affected throughout the world Name atleast two advantages of using models in science Sort the items below into two main categories: whether demand for each type of good is relatively elastic or relatively inelastic. A. Goods that are narrowly defined.B. Goods on which consumers spend a small share of their budget.C. Consumers have a long time to adjust to a change in price.D. Goods that have a large number of available substitutes.E. Goods that are necessities. What teaching would you reinforce to prevent the recurrence of otitis media? 1. I would advise the client and her parents: 1. Only clean the outer part of the ear. 2. Dont put anything in the ear that is smaller than your elbow. 3. Dry your ears after water sports or baths/showers. Which of the following is a conjugate acid-base pair in the reaction represented by theequation below?H2PO4 + H20 H3PO, + OHH2PO, and H2Ob) H,PO, and OHc) H2PO, and H3PO,None of the above A car travelled 80km in 48minutes. find the speed of the car in km/hr Find the measure of angle b Read this excerpt from an Emily Dickinson poem.How dreary to be somebody!How public, like a frogTo tell your name the livelong dayTo an admiring bog!What do these lines indicate about Dickinsons view of pride? Compltez la phrase avec le mot de vocabulaire le plus logique.En France, on sert la salade verte et le fromage aprs ______.l'entrele dessertle cafle plat principal -3x-10=32 i couldn't find the answer!!