Test the claim that the mean GPA of night students is larger than 2.8 at the .10 significance level. a) The null and alternative hypothesis would be:H0:p=0.7H0:p=0.7 H1:p>0.7H1:p>0.7 H0:p=0.7H0:p=0.7 H1:p<0.7H1:p<0.7 H0:p=0.7H0:p=0.7 H1:p0.7H1:p0.7 H0:=2.8H0:=2.8 H1:<2.8H1:<2.8 H0:=2.8H0:=2.8 H1:>2.8H1:>2.8 H0:=2.8H0:=2.8 H1:2.8H1:2.8 b) The test is:two-tailed left-tailed right-tailed Based on a sample of 80 people, the sample mean GPA was 2.84 with a standard deviation of 0.03 c) The test statistic is: (to 2 decimals) d) The critical value is: (to 2 decimals) e) Based on this we:

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