The probability of concluding that assignable variation exists when only random variation is present is:_____

I. the probability of a type I error.
II. known as the alpha risk
III. highly unlikely.
IV. the sum of probabilities in the two tails of the normal distribution

a. I and II
b. I and IV
c. II and III
d. I, II, and IV
e. I, III, and IV

Answers

Answer 1

Answer:

d. I, II, and IV

Step-by-step explanation:

The probability of a type I error: A type I error comes to play when one turns down the null hypothesis when it is true.

known as the alpha risk: this is also referred to as type I error, it is the risk in a statistical test which shows that a null hypothesis will be rejected even though it is actually true.

The sum of probabilities in the two tails of the normal distribution.

Hence, I, II, and IV are the options


Related Questions

HELP!!!!!
HELP!!!!
HELP!!!!!
PLEASE!!!

Answers

Answer:

B is the answer. Just substitute 14 in for x.

Step-by-step explanation:

At a bake sale, students sold 145 chocolate chip cookies, 95 oatmeal cookies, and 87 sugar cookies. What percent of the cookies sold were oatmeal? Round to the nearest tenth

Answers

Answer:

29.05% of cookies sold were oatmeal cookies.

Step-by-step explanation:

Students sold chocolate chip cookies = 145

Students sold oatmeal cookies = 95

Students sold sugar cookies = 87

Total cookies sold = 145+ 95 + 87

Total cookies sold= 327

The formula used to find percentage is : [tex]Percentage = \frac{part}{whole}*100[/tex]

Now, finding percent of the cookies sold that were oatmeal

Percentage of oatmeal cookies sold = [tex]\frac{95}{327}*100[/tex]

Percentage of oatmeal cookies sold = 29.05 %

So, 29.05% of cookies sold were oatmeal cookies.

what is (8 + 56) ÷ 4 + 3 2?

Answers

um is the end a 3 and 2 or 32 or 3*2?

Answer:

the answer to your question is 48

Consider the table modeling function f (top table)

Complete the table modeling the inverse of function f
(bottom table)

PLEASE HELP!! WILL MARK THE BRAINLYEST??​

Answers

Answer: For Plato users

Step-by-step explanation:

X = -28 ,-9 ,-2 ,-1 ,0

f^-1(×) = -2 , -1 , 0, 1, 2

Just flip the x and y

Just took the test .

Inverse of a function is reverse mapping (if possible). The completed table would look like as shown below:

What is inverse of a function?

Suppose that the given function is [tex]f: X \rightarrow Y[/tex]

Then, if function 'f' is one-to-one and onto function(a needed condition for inverses to exist), then, the inverse of the considered function is [tex]f^{-1}: Y \rightarrow X[/tex] such that:

[tex]\forall \: x \in X : f(x) \in Y, \exists \: y \in Y : f^{-1}(y) \in X[/tex] (and vice versa).

It simply means,inverse of 'f'  is undo operator, that takes back the effect of 'f'

Inverse of inverse function is function itself.

For the given case, if the function (take x = -2) maps x = -2 to f(x) = -28, then the inverse of this function will take back -28 to -2.

This logic tells us that:

[tex]\begin{array}{cccccc}x&-28&-9&-2&-1&0\\f^{-1}(x)&-2&1&0&1&2\end{array}[/tex]

(x simply denotes input). For inverse function, those values which were outputs of [tex]f(x)[/tex]  are now going to serve as input to inverse of [tex]f(x)[/tex] which is [tex]f^{-1}(x)[/tex]

Thus, the completed table would look like:

[tex]\begin{array}{cccccc}x&-28&-9&-2&-1&0\\f^{-1}(x)&-2&1&0&1&2\end{array}[/tex]

Learn more about inverse functions here:

https://brainly.com/question/21527869

Simi bought a study table for $9000.She sold it at a profit of 20%.How much profit did she make ? What is the selling price?

Answers

Answer:

10,800

Step-by-step explanation:

9,000+ 20%= 10,800

jamal sells some packs f muffins . each pack contains 4 muffins , he sells 36 muffins in al. how many packs of muffins did jamal sell

Answers

f = muffins

4 muffins perpack

36 sold

[tex]\frac{36}{4}[/tex] 36 divided by 4 = 9

9 what...

9 packs of muffins

i think thats how you do it but i no thats what the answer is

The sum of the two numbers is 37. The smaller number is 21 less than the larger number. What are the numbers?

Answers

8 and 29 is the answer.

On January 1, 2021, Universe of Fun issues $750,000, 9% bonds that mature in 15 years. The market interest rate for bonds of similar risk and maturity is 10%, and the bonds issue for $692,353. Interest is paid semiannually on June 30 and December 31. Record the issuance of the bonds on January 1, the interest payments on June 30, and December 31, 2021.

Answers

Answer:

Universe of Fun

Journal Entries are used to record transactions:

January 1, 2021:

Debit Cash Account $692,353

Debit Bonds Discount $57,647

Credit Bonds Payable $750,000

To record the issue of 9% bonds, semiannual interest, that mature in 15 years.

June 30, 2021:

Debit Interest Expense $35,672

Credit Discount Amortization $1,922

Credit Cash Account $33,750

To record the interest expense and discount amortization.

December 31, 2021:

Debit Interest Expense $35,672

Credit Discount Amortization $1,922

Credit Cash Account $33,750

To record the interest expense and discount amortization.

Step-by-step explanation:

Bonds Payable = $750,000

Bonds issued at a discount = $692,353

Bonds discount = $57,647 ($750,000 - $692,353)

Interest rate = 9%

Interest expense, semiannually = $33,750 ($750,000 * 9%)/2

Maturity of bonds = 15 years

Bonds discount will be amortized over 15 at $3,843 per annum ($57,647/15) on straight-line basis

Bonds discount semiannually = $1,922

b) Bonds discount arise as Universe of Fun issues the $750,000 bonds for $692,353 (less by $57,647).  This means that the bondholders are paying less than the face value, but will be repaid the full face value at maturity.

what is 32 divided by 97

Answers

Answer:

0.32989690721

Step-by-step explanation:

Answer:

rounded to the nearest hundred: 0.33

Step-by-step explanation:

hope this helps :3

Apples cost $0.75 per pound and bananas cost $1.05 per pound.

A baker bought a total of 12 pounds of apples and bananas for $10.20.

The system of equations {a+b=120.75a+1.05b=10.20 models this situation, where a is the number of pounds of apples, and b is the number of pounds of bananas.

How many pounds of each did the baker buy?

Answers

121=10.2
solving a= 0.08447204-0.08669565b

Find the price of one marker if three markers cost $18. A.) $6
B.) $54
C.) $4
D.) $3

Answers

A.) $6

You take $18/3 markers which gives you $6 for each marker.

A 600-room hotel can rent every one of its rooms at $50 per room. For each $1 increase in rent, 5 fewer rooms are rented. Each rented room costs the hotel $10 to service per day. How much should the hotel charge for each room to maximize its daily profit? What is the maximum daily profit?

Answers

it’s $42.42lbs lk nnmn

how many degrees matches to the radian measure of π/2

Answers

Answer:

π/2 = 90°

Step-by-step explanation:

Given that,

Radian measure = π/2

The formula used to convert radian measure to degree measure is given by :

[tex]\text{Degrees}=\dfrac{180^{\circ}}{\pi}\times \text{radians}\\\\=\dfrac{180^{\circ}}{\pi}\times \dfrac{\pi}{2}\\\\=90^{\circ}[/tex]

So, the degree matches for π/2 is 90°.

Opt la puterea 2014 plus 9 la puterea 2013 este pătrat perfect

Answers

Answer:

ENGLISH PLZ

Step-by-step explanation:

I CANT UNDERSTAND spanish

Please answer the following geometry question. Thank you.

Answers

Answer:

1,092.8 ft

Step-by-step explanation:

The information here gives us a right triangle.

Let "y" represent the length of the base. (Adjacent length)

Height of the tower = 984 ft (opposite length)

Angle of elevation = 48° (reference angle)

Applying trigonometric ratios formula, we would have:

[tex] tan(\theta) = \frac{opposite}{adjacent} [/tex]

Plug in the values

[tex] tan(48) = \frac{y}{984} [/tex]

Multiply both sides by 984

[tex] tan(48) \times 984 = \frac{y}{984} \times 984 [/tex]

[tex] 1,092.8 ft = y [/tex] (nearest tenth)

Determine whether each sequence is an arithmetic sequence. Write yes or no. Explain. 4, 7, 9, 12, ...​

Answers

Answer:

no

Step-by-step explanation:

the sum of 4+7+9+12=32

32/4= 8

8 is not part of the sequence. Therefore its not arithmetic.

A hot air balloon rising vertically is tracked by an observer located 4 miles from the lift-off point. At a certain moment, the angle between the observer's line-of-sight and the horizontal is pi/6, and it is changing at a rate of 0.1 rad/min. How fast is the balloon rising at this moment?

Answers

Answer:

0.533 miles/min

Step-by-step explanation:

Calculate how fast  the balloon is rising at the moment : dy /dt

location from the lift-off point = 4 miles

angle between the observer's line-of-sight and the horizontal ( ∅ )  = [tex]\frac{\pi }{6}[/tex]

d∅ / dt = 0.1 rad/min

tan ∅ = y / 4

derivate

sec^2 ∅ . d∅ / dt  = 1/4 . dy/dt

= sec^2 [tex]\frac{\pi }{6}[/tex] . 0.1 = 1/4 . dy/dt

= ( sec^2 0.5238 * 0.1 ) * 4 = dy/dt

dy/dt = 8 / 15  miles/min

Choose the equation that is true.

345 – 15 = 15 - 345
18 + 0 = 0 + 18
3 + 8 = 7 + 5
5 + 4 + 2 = 6 + 3 + 1

Answers

the second one is true
the first one is 330=-330
the third is 11=12
the fourth is 11=10
so the first is the only true answer

IF ITS WRONG YOUR BEING REPORTED THIS IS A SERIOUS QUESTION

Answers

Answer:

[tex]range=5.1[/tex]

Step-by-step explanation:

The range of a set is found by subtracting the lowest number from the greatest number.

The greatest number is 2.8 , and the lowest is -2.3. Subtract the values:

[tex]2.8-(-2.3)[/tex]

Two negatives make a positive, so:

[tex]2.8+2.3=5.1[/tex]

:Done

What is the y-intercept of the line?
What is the slope of the line?
Write an equation for the line​

Answers

y intercept is -2 (the y intercept is found by seeing where the line passes the y axis)

slope is 5/2 or 2.5

equation is: y = 2.5x -2

how do u find the third side

Answers

Answer:

Square root of 49

The missing side is 7

Step-by-step explanation:

With the Pythagorean theorem.

25^2= 625

24^2= 576

Square root of 49=7

The missing side is 7

Convert 88 °F to Celsius Round your answer to the nearest tenth. °C​

Answers

Answer:

Step-by-step explanationfor changing °F to °Cuse the formula

°C=(F-32)5/9

=(88-32)5/9

=56×5/9

=280/9

=31.11

So the value of nearest tenth is 31°c

fill in the blank pls​

Answers

I think the answer is c due to the word bag being plural but I’m not sure.

Answer:

number 2

Step-by-step explanation:

Guys actually help me with this please.

Answers

Answer:

b

Step-by-step explanation:

Answer:

B

Step-by-step explanation:

2x2 = 4

3x2 = 6

A line with a slope of 1 passes through the point (7, 9). What is its equation in
slope-intercept form?

Answers

Answer: y=1x+9

Step-by-step explanation: Hope this helped!!

Plzz Due today!
The table below represents a linear function f(x) and the equation represents a function g(x): (See pic)


Part A: Write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x).

Part B: Which function has a greater y-intercept? Justify your answer.

Answers

Answer: The table below represents a linear function f(x) and the equation represents a function g(x): x f(x) −1 -12 0 -6 1 0 g(x) g(x) = 2x + 6 Part A: Write a sentence to compare the slope of the two functions and show the steps you used to determine the slope of f(x) and g(x).

PART B: y=mx +b is slope intercept form of linear equation where m=slope and b =y intercept

slope for line for function f(x) =-5-(-1) / -1-0 =-5+1/-1=-4/-1=4  

y = 4x+b

3=4(1)+b

3=4+b

-1 =b

y=4x-1

f(x)=4x-1     slope = 4

g(x)=2x -7    slope = 2

b) y intercept for f(x) is -1

and g(x) is -7

so f(x) is having greater y intercept

19. What is the value of the expression below?
9 + (7 x 4) - 13

Answers

Answer:

24

Step-by-step explanation:

9+(7x4)-13

9+28-13

37-13

24

24 is the correct answer

Frank bought 6 bags of dog food and 7 bags of cat food for $74.50. Daisy bought 3 bags of dog food and 9 bags of cat food for $ 67.50 . How much does it cost for each bag of dog and cat food ?

Answers

The question is not clear

could u help me

with this ​

Answers

Answer:

P = 7

Step-by-step explanation:

46+8=54

54-5=49

49÷7=P

Answer the question in the picture

Answers

Answer:

the answer is the second choice

Step-by-step explanation:

2 steps right and 5 up in mathematics is written as:

x->x+2 and y->y+5

For instance, in the point L

(-5,-2) --> (-5+2,-2+5)=(-3,3)

which is L'=(-3,3)

and so on.

Other Questions
The table below shows the number of miles Josh drives and the number of hours it takes to get there. What is the constant of proportionality in the table? 18/13=3/4xwhat does x equal? How do you do this question? Pls factorise x-7x+12 Determine the measure of angle A. PLEASE HELP PLEASE.a.54 DEGREESb.1 DEGREES c.36 DEGREESd.32 DEGREES why nylon is perferred for making cloths instead of silk? Which of the following is true about how adults cope with anxiety?O a. Anxiety always results in the development of phobias.b. It is easier to cope when they have a network of friends.c. Adults never have anxiety or stress about new situations.O d. Medication is the only way to relieve anxiety in adults. why did Trevor love christmas with Robert? ____CO2 + ___H2O _____C6H12O6 + _____O2 please help me on this Brainliest and 10 points! Compare and contrast static and passive stretching. SOMEBODY PLEASE HELP!! I will give you brainliest :)) Priscilla is in the eighth grade. Every day after school, she hangs out with her friends from her class who are popular. She is very fond of them and wants to become popular like them. Her friends have recently started shoplifting at departmental stores. According to research studies on the effect of peer pressure on conformity, which of the following is Priscilla most likely to do? Identify the scale factor used to dilate triangle ABC to triangle DEF.A(2,6), B(4,2), C(8,8)D(3,9), E(6, 3), F(12, 12)A. 3/2B. 3C. 2D. 5/2 What is a dowry system Why is it considered as a social problems Translate Alors on danse Complete with the preterite of ir/ser 19. Yoa la playa ayer.(ir)20. Ellostambin.(ir)21. EIpresidentela clase (ser)22. t tambin?(ser)a un balneario el verano23. Mis amigos y yopasado. (ir) What is 0.87 is 10 times as much as? Simplify: 5^ -3 5^ 525^ 825^ -155^ -35^ 2 A 800 kg car zooms away from a red light with an acceleration of 7.6 m/s2. What is theaverage net force in Newtons that the car experiences?