Test the claim that the mean GPA of night students is significantly different than 3.2 at the 0.2 significance level. The null and alternative hypothesis would be: (multiple choice)  H0:p=0.8H0:p=0.8 H1:p>0.8H1:p>0.8   H0:μ=3.2H0:μ=3.2 H1:μ>3.2H1:μ>3.2   H0:p=0.8H0:p=0.8 H1:p<0.8H1:p<0.8   H0:μ=3.2H0:μ=3.2 H1:μ≠3.2H1:μ≠3.2   H0:μ=3.2H0:μ=3.2 H1:μ<3.2H1:μ<3.2   H0:p=0.8H0:p=0.8 H1:p≠0.8H1:p≠0.8 The test is: (multiple choice) left-tailed right-tailed two-tailed Based on a sample of 30 people, the sample mean GPA was 3.17 with a standard deviation of 0.07 The test statistic is:        (to 2 decimals) The positive critical value is:        (to 2 decimals) Based on this we: (multiple choice)  Reject the null hypothesis Fail to reject the null hypothesis

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Test the claim that the mean GPA of night students is significantly different than 3.2 at the 0.2 significance level.

The null and alternative hypothesis would be: (multiple choice) 

H0:p=0.8H0:p=0.8
H1:p>0.8H1:p>0.8
 
H0:μ=3.2H0:μ=3.2
H1:μ>3.2H1:μ>3.2
 
H0:p=0.8H0:p=0.8
H1:p<0.8H1:p<0.8
 
H0:μ=3.2H0:μ=3.2
H1:μ≠3.2H1:μ≠3.2
 
H0:μ=3.2H0:μ=3.2
H1:μ<3.2H1:μ<3.2
 
H0:p=0.8H0:p=0.8
H1:p≠0.8H1:p≠0.8



The test is: (multiple choice)

left-tailed
right-tailed
two-tailed



Based on a sample of 30 people, the sample mean GPA was 3.17 with a standard deviation of 0.07

The test statistic is:        (to 2 decimals)

The positive critical value is:        (to 2 decimals)

Based on this we: (multiple choice) 

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