Test the claim that the mean GPA of night students is significantly different than the mean GPA of day students at the 0.05 significance level.

The null and alternative hypothesis would be:

H0:ND

H1:N>D

H0:pNpD

H1:pN>pD

H0:pNpD

H1:pN

H0:pN=pD

H1:pNpD

H0:ND

H1:N

H0:N=D

H1:ND

The test is:

right-tailed left-tailed two-tailed

The sample consisted of 45 night students, with a sample mean GPA of 2.89 and a standard deviation of 0.08, and 45 day students, with a sample mean GPA of 2.91 and a standard deviation of 0.05.

The test statistic is:(to 2 decimals) _______________

The p-value is:(to 2 decimals) _______________

Based on this we:

• Fail to reject the null hypothesis

• Reject the null hypothesis