Test the claim that the mean GPA of night students is smaller than 3.3 at the .025 significance level. The null and alternative hypothesis would be: H0:μ=3.3 H1:μ≠3.3   H0:p=0.825 H1:p≠0.825   H0:μ=3.3 H1:μ<3.3   H0:p=0.825 H1:p<0.825   H0:μ=3.3 H1:μ>3.3   H0:p=0.825 H1:p>0.825   The test is: two-tailed right-tailed left-tailed Based on a sample of 80 people, the sample mean GPA was 3.28 with a standard deviation of 0.08 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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Test the claim that the mean GPA of night students is smaller than 3.3 at the .025 significance level.

The null and alternative hypothesis would be:

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



The test is:

two-tailed
right-tailed
left-tailed



Based on a sample of 80 people, the sample mean GPA was 3.28 with a standard deviation of 0.08

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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