The mean internet browsing time for Americans is 15 hours per week (Money, November 2019). A sample of 60 Americans is taken to further investigate internet browsing habits. Assume the population standard deviation for weekly browsing time is 4 hours. (a) Internet browsing time of all Americans is [ Select ] (b) The sample size here is [ Select ] (c) The standard error of the mean is (round to 0.0001) [Select 1
The mean internet browsing time for Americans is 15 hours per week (Money, November 2019). A sample of 60 Americans is taken to further investigate internet browsing habits. Assume the population standard deviation for weekly browsing time is 4 hours. (a) Internet browsing time of all Americans is [ Select ] (b) The sample size here is [ Select ] (c) The standard error of the mean is (round to 0.0001) [Select 1
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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![The mean internet browsing time for Americans is 15 hours per week (Money, November 2019). A
sample of 60 Americans is taken to further investigate internet browsing habits. Assume the
population standard deviation for weekly browsing time is 4 hours.
(a) Internet browsing time of all Americans is
[ Select ]
(b) The sample size here is [ Select ]
(c) The standard error of the mean is (round to 0.0001)
[ Select 1
(d) What is the probability that the sample mean will be more than 18 hours? [Hint: Use Central Limit
Theorem (CLT).] [Select]
(e) What is the probability that the sample mean will be less than 15 hours and 30 minutes? [Hint: 15
hours and 30 minutes = 15.5 hours] [Select ]
%3D](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fd8c403c1-73da-4878-97dd-7583351688c0%2F772852d6-b4e0-4de2-bd05-2615d03ce2ba%2Fzpamoh_processed.jpeg&w=3840&q=75)
Transcribed Image Text:The mean internet browsing time for Americans is 15 hours per week (Money, November 2019). A
sample of 60 Americans is taken to further investigate internet browsing habits. Assume the
population standard deviation for weekly browsing time is 4 hours.
(a) Internet browsing time of all Americans is
[ Select ]
(b) The sample size here is [ Select ]
(c) The standard error of the mean is (round to 0.0001)
[ Select 1
(d) What is the probability that the sample mean will be more than 18 hours? [Hint: Use Central Limit
Theorem (CLT).] [Select]
(e) What is the probability that the sample mean will be less than 15 hours and 30 minutes? [Hint: 15
hours and 30 minutes = 15.5 hours] [Select ]
%3D
Expert Solution
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The population standard deviation is 4 hours.
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