The time needed for university students to complete a quick math test follows a normal distribution with a mean of 31.2 seconds and a standard deviation of four seconds. You wish to see if the mean time m is changed by excessive running, so you have a group of 35 university students run vigorously for one hour and then complete the quick test. It takes them an average of = 33.1 seconds to complete the test. Use this information to test the hypotheses m = 31.2, Ha: m 31.2 at significance level a = 0.01. You conclude Question 10 options: That this is a borderline case and no decision should be made That HO should be rejected That HO should not be rejected That Ha should be accepted
The time needed for university students to complete a quick math test follows a normal distribution with a mean of 31.2 seconds and a standard deviation of four seconds. You wish to see if the mean time m is changed by excessive running, so you have a group of 35 university students run vigorously for one hour and then complete the quick test. It takes them an average of = 33.1 seconds to complete the test. Use this information to test the hypotheses m = 31.2, Ha: m 31.2 at significance level a = 0.01. You conclude Question 10 options: That this is a borderline case and no decision should be made That HO should be rejected That HO should not be rejected That Ha should be accepted
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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Transcribed Image Text:The time needed for university students to complete a quick math
test follows a normal distribution with a mean of 31.2 seconds and
a standard deviation of four seconds. You wish to see if the mean
time m is changed by excessive running, so you have a group of 35
university students run vigorously for one hour and then complete
the quick test. It takes them an average of = 33.1 seconds to
complete the test. Use this information to test the hypotheses
m = 31.2, Ha: m 31.2 at significance level a = 0.01. You conclude
Question 10 options:
That this is a borderline case and no decision should be made
That HO should be rejected
That HO should not be rejected
That Ha should be accepted
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