Test the claim that the mean GPA of night students is significantly different than 3.3 at the 0.1 significance level. The null and alternative hypothesis would be: H0:p=0.825H0:p=0.825 H1:p≠0.825H1:p≠0.825 H0:p=0.825H0:p=0.825 H1:p>0.825H1:p>0.825 H0:p=0.825H0:p=0.825 H1:p<0.825H1:p<0.825 H0:μ=3.3H0:μ=3.3 H1:μ≠3.3H1:μ≠3.3 H0:μ=3.3H0:μ=3.3 H1:μ<3.3H1:μ<3.3 H0:μ=3.3H0:μ=3.3 H1:μ>3.3H1:μ>3.3 The test is: two-tailed right-tailed left-tailed Based on a sample of 60 people, the sample mean GPA was 3.33 with a standard deviation of 0.03 The test statistic is:  (to 2 decimals) The positive critical value is:  (to 2 decimals) Based on this we: Reject the null hypothesis Fail to reject the null hypothesis

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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ISBN:9780079039897
Author:Carter
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Chapter4: Equations Of Linear Functions
Section: Chapter Questions
Problem 8SGR
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Test the claim that the mean GPA of night students is significantly different than 3.3 at the 0.1 significance level.

The null and alternative hypothesis would be:

H0:p=0.825H0:p=0.825
H1:p≠0.825H1:p≠0.825
H0:p=0.825H0:p=0.825
H1:p>0.825H1:p>0.825
H0:p=0.825H0:p=0.825
H1:p<0.825H1:p<0.825
H0:μ=3.3H0:μ=3.3
H1:μ≠3.3H1:μ≠3.3
H0:μ=3.3H0:μ=3.3
H1:μ<3.3H1:μ<3.3
H0:μ=3.3H0:μ=3.3
H1:μ>3.3H1:μ>3.3



The test is:

two-tailed
right-tailed
left-tailed



Based on a sample of 60 people, the sample mean GPA was 3.33 with a standard deviation of 0.03

The test statistic is:  (to 2 decimals)

The positive critical value is:  (to 2 decimals)

Based on this we:

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