Test the claim that the mean GPA of night students is smaller than 2.7 at the .025 significance level.

The null and alternative hypothesis would be:

• H0:p=0.675
• H1:p<0.675

• H0:p=0.675
• H1:p0.675

• H0:=2.7
• H1:<2.7

• H0:=2.7
• H1:>2.7

• H0:p=0.675
• H1:p>0.675

• H0:=2.7
• H1:2.7

Based on a sample of 55 people, the sample mean GPA was 2.65 with a standard deviation of 0.07

The test statistic is(to 3 decimals)

The critical value is(to 3 decimals)

Based on this we

• reject the null hypothesis
• fail to reject the null hypothesis