Solve the problem. 5) A 99% confidence interval (in inches) for the mean height of a population is 65.64 < µ < 67.16. This result is based on a sample of size 144. If the confidence interval 65.85 < µ < 66.95 is obtained from the same sample data, what is the degree of confidence? (Hint: you will first need to find the sample mean and sample standard deviation). A) 94% 5) B) 93% C) 92% D) 95%
Solve the problem. 5) A 99% confidence interval (in inches) for the mean height of a population is 65.64 < µ < 67.16. This result is based on a sample of size 144. If the confidence interval 65.85 < µ < 66.95 is obtained from the same sample data, what is the degree of confidence? (Hint: you will first need to find the sample mean and sample standard deviation). A) 94% 5) B) 93% C) 92% D) 95%
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Can i get question 5 & 6 answered please
![Solve the problem.
5) A 99% confidence interval (in inches) for the mean height of a population is 65.64 < µ < 67.16. This
result is based on a sample of size 144. If the confidence interval 65.85 < µ < 66.95 is obtained from
the same sample data, what is the degree of confidence? (Hint: you will first need to find the
sample mean and sample standard deviation).
A) 94%
5)
B) 93%
C) 92%
D) 95%
Use the given information to find the coefficient of determination.
6) The following are costs of advertising (in thousands of dollars) and the numbers of products sold
(in thousands):
Cost
9.
2
4
9 10
Number 85 52 55 68 67 86 83 73
The equation of the regression line is y' = 2.78846x + 55.7885. Find the coefficient of determination.
A) 0.7077
B) -0.0707
C) 0.5009
D) 0.2353](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F70d6cd24-8cc3-45ef-9290-e80de6254993%2F4f7312c9-a2f4-4e20-bc4d-531f6d60411c%2Fs0futbc_processed.png&w=3840&q=75)
Transcribed Image Text:Solve the problem.
5) A 99% confidence interval (in inches) for the mean height of a population is 65.64 < µ < 67.16. This
result is based on a sample of size 144. If the confidence interval 65.85 < µ < 66.95 is obtained from
the same sample data, what is the degree of confidence? (Hint: you will first need to find the
sample mean and sample standard deviation).
A) 94%
5)
B) 93%
C) 92%
D) 95%
Use the given information to find the coefficient of determination.
6) The following are costs of advertising (in thousands of dollars) and the numbers of products sold
(in thousands):
Cost
9.
2
4
9 10
Number 85 52 55 68 67 86 83 73
The equation of the regression line is y' = 2.78846x + 55.7885. Find the coefficient of determination.
A) 0.7077
B) -0.0707
C) 0.5009
D) 0.2353
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