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Test the claim that the mean GPA of night students is smaller than 2.5 at the .05 significance level. The null and alternative hypothesis would be: H0:μ=2.5H0:μ=2.5 H1:μ≠2.5H1:μ≠2.5 H0:p=0.625H0:p=0.625 H1:p≠0.625H1:p≠0.625 H0:p=0.625H0:p=0.625 H1:p>0.625H1:p>0.625 H0:p=0.625H0:p=0.625 H1:p<0.625H1:p<0.625 H0:μ=2.5H0:μ=2.5 H1:μ>2.5H1:μ>2.5 H0:μ=2.5H0:μ=2.5 H1:μ<2.5H1:μ<2.5 The test is: right-tailed two-tailed left-tailed Based on a sample of 35 people, the sample mean GPA was 2.46 with a standard deviation of 0.03 The test statistic is:  (to 2 decimals) The critical value is:  (to 2 decimals) Based on this we: Fail to reject the null hypothesis Reject the null hypothesis

Test the claim that the mean GPA of night students is smaller than 2.5 at the .05 significance level. The null and alternative hypothesis would be: H0:μ=2.5H0:μ=2.5 H1:μ≠2.5H1:μ≠2.5 H0:p=0.625H0:p=0.625 H1:p≠0.625H1:p≠0.625 H0:p=0.625H0:p=0.625 H1:p>0.625H1:p>0.625 H0:p=0.625H0:p=0.625 H1:p<0.625H1:p<0.625 H0:μ=2.5H0:μ=2.5 H1:μ>2.5H1:μ>2.5 H0:μ=2.5H0:μ=2.5 H1:μ<2.5H1:μ<2.5 The test is: right-tailed two-tailed left-tailed Based on a sample of 35 people, the sample mean GPA was 2.46 with a standard deviation of 0.03 The test statistic is:  (to 2 decimals) The critical value is:  (to 2 decimals) Based on this we: Fail to reject the null hypothesis Reject the null hypothesis

MATLAB: An Introduction with Applications
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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Test the claim that the mean GPA of night students is smaller than 2.5 at the .05 significance level.

The null and alternative hypothesis would be:

H0:μ=2.5H0:μ=2.5
H1:μ≠2.5H1:μ≠2.5
H0:p=0.625H0:p=0.625
H1:p≠0.625H1:p≠0.625
H0:p=0.625H0:p=0.625
H1:p>0.625H1:p>0.625
H0:p=0.625H0:p=0.625
H1:p<0.625H1:p<0.625
H0:μ=2.5H0:μ=2.5
H1:μ>2.5H1:μ>2.5
H0:μ=2.5H0:μ=2.5
H1:μ<2.5H1:μ<2.5



The test is:

right-tailed
two-tailed
left-tailed



Based on a sample of 35 people, the sample mean GPA was 2.46 with a standard deviation of 0.03

The test statistic is:  (to 2 decimals)

The critical value is:  (to 2 decimals)

Based on this we:

  • Fail to reject the null hypothesis
  • Reject the null hypothesis
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