10.68 Past experience indicates that the time re- quired for high school seniors to complete a standard- ized test is a normal random variable with a standard deviation of 6 minutes. Test the hypothesis that o = 6 against the alternative that o < 6 if a random sample of the test times of 20 high school seniors has a standard deviation s = 4.51. Use a 0.05 level of significance.
10.68 Past experience indicates that the time re- quired for high school seniors to complete a standard- ized test is a normal random variable with a standard deviation of 6 minutes. Test the hypothesis that o = 6 against the alternative that o < 6 if a random sample of the test times of 20 high school seniors has a standard deviation s = 4.51. Use a 0.05 level of significance.
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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Provide complete solution, box the final answer.
![10.68 Past experience indicates that the time re-
quired for high school seniors to complete a standard-
ized test is a normal random variable with a standard
deviation of 6 minutes. Test the hypothesis that o = 6
against the alternative that o < 6 if a random sample of
the test times of 20 high school seniors has a standard
deviation s = 4.51. Use a 0.05 level of significance.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F695a5126-3dea-4a7a-a774-06ef37ea2feb%2Faba19665-7a7f-4a4c-9cc1-2e4f9d3f6497%2Fr935evr_processed.png&w=3840&q=75)
Transcribed Image Text:10.68 Past experience indicates that the time re-
quired for high school seniors to complete a standard-
ized test is a normal random variable with a standard
deviation of 6 minutes. Test the hypothesis that o = 6
against the alternative that o < 6 if a random sample of
the test times of 20 high school seniors has a standard
deviation s = 4.51. Use a 0.05 level of significance.
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