Swapna gathered data on the number of page views for each of her blog posts. For her 40 latest posts, she found a sample mean of 358 with a population standard deviation of 54.3. What is the approximate 95% confidence interval for her page views? HINT: It's not D.
A. 344 and 372
B. 356 and 360
C. 341 and 375
D. 336 and 380
Answers
Answer: for plato users
D. 341 and 375
Step-by-step explanation:
I just took the test
The approximate 95% confidence interval for Swapna's page views is [341, 375].
What is confidence interval?It is a range of values that's likely to include a population value with a certain degree of confidence. It is expressed as a percent (%) where a population mean lies between an upper and lower interval.A confidence interval is how much uncertainty is with any particular statistic.When it is a 95% confidence interval, it means a range of values that you can be 95% certain contains the true mean of the population.A confidence interval is obtained from the observed data that holds the actual value of the unknown parameter.Formula of confidence interval:Confidence interval = mean ± Z * (standard deviation/ √sample size)
For given question,
Sample size = 40
Sample mean = 358
Standard deviation = 54.3
Critical value at 95% confidence level= 1.96
Confidence interval = 358 ± 1.96 * (54.3/ √40)
= [358 - 1.96 * (54.3/ √40) ,358 + 1.96 * (54.3/ √40)]
= [341, 375] (approximately)
Learn more about confidence interval here
https://brainly.com/question/24131141
#SPJ2
Related Questions
Need help quick please
Answers
Answer:
line 2
Step-by-step explanation:
on line 2 the two minuses at the end turn into a + (where the -2 is there should be a +2) because - x - = +
beth owes 17000 on her car loan. the interest rate on her loan is 4.25% she will be paying this loan off in 4 years how much will beth pay all together?
28,900
19,890
2890
45,900
Answers
Answer:She has to pay $20078.7 amount.
Step-by-step explanation:
Given : Beth owes 17,000 on her car loan. The interest rate on her loan is 4.25% She will be paying this loan off for 4 years.
To find : How much will she pay altogether?
Solution :
Using compound interest formula,
A = P(1 + r)
Where A is the amount
P is the principle P=17,000
P is the rate r=4.25%=0.0425
t is the time t= 4 years
Substitute the value,
Therefore, She has to pay $20078.7 amount.
PLEASE GUYS IM BEGGING YOU TO HELP ME I ONLY HAVE 5 MORE MINUTES HURRY
Answers
Answer:
5. 14 1/2 inches, 14.6 inches, 176 inches
7. 37.5%
Repent while there’s still time. Love while you still can. Give till there’s nothing left. Serve with all you’ve got. Go while you’re still able. Share all that you have. Follow hard after God. Live with no regrets. Time is of the essence. If we only have today, there’s still time. Don’t miss this time. Look yourself in the mirror and ask your self - If I died today, would the Lord judge me worthy of eternal life? If the answer is no, then ask him for forgivness. As long as you are really sorry, he will forgive you. If you want to talk, I am here. If you need time alone, then I will leave you alone. If you need a Bible, I can get you one. Follow your heart and never stop doing good. Thank you for reading this, and have a great day. May the good Lord bless you, your family, and the world.
"The fear of the LORD is the beginning of wisdom, and knowledge of the Holy One is understanding." - Proverbs 9:10
Create a proportion from the given set of numbers: 3,6,7,14
Answers
Answer
3:6=7:14
Step-by-step explanation:
pls make me branliest
Holly has4/6quart of potato salad. She gives2/6
quart to a friend,
How much potato salad does she have left?
Answers
Answer:
Hi! The answer to your question is [tex]1/3[/tex]
Step-by-step explanation:
☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆☆*: .｡..｡.:*☆
☆Brainliest is greatly appreciated!☆
Stay Safe!!!
Hope this helps!!
- Brooklynn Deka
What Is The Perimeter ? If Necessary, Round To The Nearest Tenth
Answers
Answer:
4 yd
Step-by-step explanation:
The perimeter of a triangle is 9.12 yards.
What is the perimeter?The perimeter of a shape is defined as the total distance around the shape. It is the length of the outline or boundary of any two-dimensional geometric shape. The perimeter of different figures can be equal in measure depending upon the dimensions.
By using Pythagoras theorem, we get
c²=4²+1²
c²=17
c=√17
c=4.12 yd
Now, perimeter = 4+1+4.12
= 9.12 yd
Therefore, the perimeter of a triangle is 9.12 yards.
To learn more about the perimeter visit:
https://brainly.com/question/6465134.
#SPJ2
Ms. Marcus saws an 8-foot board into 2 pieces. One piece is 3.625 feet long. What is the length of the other piece?
Answers
Answer:
4.375
Step-by-step explanation:
Taking off the length, we know you need to subtract. We can write out the answer as 8-3.625 which is 4.375.
By the way can you follow me on Brainly?
Thanks!
Hi here equation everybody please help thanks
Answers
Answer: 2(3x+1)
Step-by-step explanation:
2(3x+1) ==> 2(3x)+2(1)
6x+2
Answer:
2(3x + 1)
Hope that helps! :)
Step-by-step explanation:
What is the equation needed to solve for X?
Answers
Answer:
[tex]x - 8 + 4x - 7 = 180 \\ \\ 5x - 15 = 180 \\ \\ 5x = 180 + 15 \\ \\ 5x = 195 \\ \\ x = 195 \div 5 \\ \\ x = 39 \\ [/tex]
Sarah is saving to buy a new phone. She needs $150, and she has already saved $63. Write an equation to model this situation. Let
x represent the amount of money Sarah needs.
A)
X-63 = 150
B)
x+63 = 150
X + 150 = 63
D)
X - 150 = 63
Answers
Answer:
B.
Step-by-step explanation:
x+63=150
x+63-63=150-63
x=87
She needs 87 more dollars for her new phone.
an item is regularly priced at 29. Joe bought it at a discount of 45% off the regular price.
Answers
Answer:
$13.05
Step-by-step explanation:
The prize will be $13.05 after the discount.
29x45%=13.05
OR
29x0.45=13.05
what numbers multiply to give 100 and when summed up give 25................................
Answers
I need help please ?!!!!
Answers
Answer:
multiplication
Step-by-step explanation:
The inverse of division is multiplication
The inverse of addition is subtraction
The inverse of multiplication is division
The inverse of subtraction is division
five million ninety thousand thirty nine
Answers
Answer:
5,090,039
Step-by-step explanation:
Are you trying to number it out?
Answer:
5,090,039
Step-by-step explanation:
Just separate them, do them one at a time and add them all together
5,000,000
90,000
+ 039
___________
Hope this helps
~R3V0
? Help
Which number will make the two fractions
10 5
equivalent?
38 ?
OA) 2
B) 5
C) 18
D) 19
Answers
Answer:
9
Step-by-step explanation:
Answer:
9
Step-by-step explanation:
it is just right my brudda
There are 90 kids in the band. 20% of the kids own their instruments, and the rest rent them. What percentage of kids either rent or own and instrument
Answers
Answer:
im conufesed
Step-by-step explanation:
Answer:
18 kids own their own instruments
72 kids rent instruments
80%rent 20%own
Step-by-step explanation:
PLEASE HELP I WILL MARK BRAINLIEST
Part A
At most, Marc can spend $50 on sandwiches and chips for a picnic his art club is having. He already bought chips for $6 and will buy sandwiches that cost $4.50 each. Write an inequality to show how many sandwiches (s) he can buy.
Part B
Solve the inequality to show the maximum amount of sandwiches he can buy.
Answers
Part A: y=4.50x+6
Part B: $46.50=4.50(9)+6
Marc can buy up to 9 sandwiches ($40.5) plus chips ($6) without going over $50.
What is the value of x in the triangle?
I need help pls :)
Answers
Answer:
17
Step-by-step explanation:
using Pythagorus theroem, you do (√514)² - 15².
This gives you 289 which you then need to square root, giving you 17
HELP HELP HELP
A zoologist studied the wild cat population of two islands during a four year span - Meow Island and Purr Island. She collected the following data about the population.
1. How would you describe the growth of each island ?
2. Which do you think will be modeled by a linear function ?
Answers
Answer:
Meow Island has a linear function.
Step-by-step explanation:
Meow Island increases by multiply the input by 3 for each coordinate. On the other hand, Purr Island increases by adding 4. Linear functions increase with multiplication, not by addition, and so Meow Island increases linearly.
I need this one, please
Answers
Answer:
eeeeeeeeeeeeeeeeeeeeeeeeeeeee
Amanda can jog 18 miles in 5 hours.
Answers
Answer:
the probelm does not make sense
Step-by-step explanation:
you can try dividing
Answer:
14.4 miles
Step-by-step explanation:
Amanda can jog 18 miles in 5 hours.
At the same rate how many miles can Amanda jog in 4 hours=??
solution:
Distance covered by Amanda in 5 hours = 18 miles
Distance covered in 1 hour = 18/5 miles
Distance covered in 1 hour is =3.6
Distance covered in 4 hours = 4*3.6=14.4
Hence Amanda can jog 14.4 miles in 4 hours
Sam is making a picture frame. He is gluing craft sticks end-to-end to a piece of cardboard. The sticks do not overlap. The top of the frame is 18 and one-third inches long. Each craft stick is 3 and one-third inches long.
How many craft sticks will Sam glue to the cardboard to make the top of the frame?
Answers
Answer: 5 1/2
Step-by-step explanation:
I took the test ig, but im not 100% sure
Matthew bought flowers for his mother. Exactly 1/4 of the roses were white. How many roses were white?
Answers
Answer:
1/4
Step-by-step explanation:
jdkdbejenrdjeiuidur
A spherical cantaloupe is cut in half. The visible cross-section has an area of 5252 in2. The volume of the cantaloupe is _____ cm3. Round your answer to the tenths place.
Answers
Answer:
V = 286319.465 cm3
Step-by-step explanation:
First, you have to find the radius to be able to find the volume of a sphere.
The equation for the area of a circle is pi r^2 so you have to so some algebra.
5252 = pi r ^2
5252/pi = r^2
1671.76352 = r^2
sqrt(1671.76352) = r
r = 40.8872048
then you do the equation for the volume of a circle which is 4/3 pi r^3
4/3 pi (40.8872048)^3
4/3 pi 68353.7373
4/3 214739.599
286319.465
V = 286319.465 cm3
write down the number in a condensed form:
200 + 40 + 5 +0.3 + 0.07
Answers
Answer:
answer is 240.37
Step-by-step explanation:
i added each one together add the ends and then got 240.37 (btw I'm in 4 grace)
The condensed form of the given expression 200 + 40 + 5 +0.3 + 0.07 is 245.37.
Given expression is [tex]200 + 40 + 5 +0.3 + 0.07[/tex]
It is required to find condensed form.
What is condensed form of an expression?Condensed form is the representing the expression in the composite way.
By solving the expression
[tex]=200 + 40 + 5 +0.3 + 0.07[/tex]
[tex]=245.37[/tex]
Thus, the condensed form of the given expression is 245.37.
Learn more about the condensed problems here:
https://brainly.com/question/24536701
5. In quadrilateral RSTW. diagonals RT and SW are perpendicular bisectors of
each other, Quadrilateral RSTW must be a
Rectangle Rhombus m. Square
a,
c. I and IN
d. 1. I, and I
Answers
Answer:
Rhombus and/or Square
Answer please I am in school so I don’t want to be shed by a dum link
Answers
Answer:
Sorry if I got it wrong.
Step-by-step explanation:
You add them together then devide by 3 so 333.333333333 squar feet per gallon so the art room is 400 so I would say about 1.5 or close to that
A rectangle garden is 30 feet wide if its area is 2700 ft.² what is the length of the garden?
Answers
Answer:
The answer is 90
Step-by-step explanation:
A= L*W
so when you are given the are and the width you need to divide the area by the width to find the length
Find the equation on the line
Use exact number
Y=_x+_
NEED ASAP PLEASE
Answers
Answer:
1.5x+3
Step-by-step explanation:
......
.
..........
Find 50% of 152:
Find 25% of 152:
Find 75% of 152:
Answers
50% of 152 = 76
25% of 152 = 38
75% of 152 = 114
Sorry if im wrong
Answer:
76
38
114
Step-by-step explanation:
50% of 152
= ( 50 / 100 ) x 152
= ( 1 / 2 ) x 152
= 152 / 2
= 76
25% of 152
= ( 25 / 100 ) x 152
= ( 1 / 4 ) x 152
= 152 / 4
= 38
75% of 152
= ( 75 / 100 ) x 152
= ( 3 / 4 ) x 152
= ( 3 x 152 ) / 4
= 3 x 38
= 114
