ɔ. What was the standard deviation, assuming that the population standard deviation is known? a. The lower limit of the confidence interval is 5.771 and the upper limit of the confidence interval is 6.809. Round to three decimal places as needed.) ɔ. The standard deviation, assuming that the population standard deviation is known, is 1.426 .
ɔ. What was the standard deviation, assuming that the population standard deviation is known? a. The lower limit of the confidence interval is 5.771 and the upper limit of the confidence interval is 6.809. Round to three decimal places as needed.) ɔ. The standard deviation, assuming that the population standard deviation is known, is 1.426 .
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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I found the answer for number 2 through the calculator but I have to prove my work through excel formulas . Can somebody please help?
![A survey of 29 college freshmen found that they average 6.29 hours of sleep each night. A 95% confidence interval had a margin of error of 0.519.
a. What are the lower and upper limits of the confidence interval?
b. What was the standard deviation, assuming that the population standard deviation is known?
.....
a. The lower limit of the confidence interval is 5.771 and the upper limit of the confidence interval is 6.809.
(Round to three decimal places as needed.)
b. The standard deviation, assuming that the population standard deviation is known, is 1.426 .
(Round to three decimal places as needed.)](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F1c0b502e-e325-45ed-92c6-ca99a594cac2%2Fc89d10ea-07e1-4d83-8666-cb81f93b40a4%2F1nvg39_processed.png&w=3840&q=75)
Transcribed Image Text:A survey of 29 college freshmen found that they average 6.29 hours of sleep each night. A 95% confidence interval had a margin of error of 0.519.
a. What are the lower and upper limits of the confidence interval?
b. What was the standard deviation, assuming that the population standard deviation is known?
.....
a. The lower limit of the confidence interval is 5.771 and the upper limit of the confidence interval is 6.809.
(Round to three decimal places as needed.)
b. The standard deviation, assuming that the population standard deviation is known, is 1.426 .
(Round to three decimal places as needed.)
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