Calculate the test-statistic, t with the following information. n1=60, x1=2.61, s1=0.98 n2=55, x2=2.76, s2=0.72 Rounded to 2 decimal places.

=

Test the claim that the mean GPA of night students is smaller than the mean GPA of day students at the 0.025 significance level. The test is:

right-tailed two-tailed left-tailed The sample consisted of 45 night students, with a sample mean GPA of 2.37 and a standard deviation of 0.07, and 45 day students, with a sample mean GPA of 2.38 and a standard deviation of 0.04. 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