You are testing the claim that the mean GPA of night students is less than the mean GPA of day students. You sample 45 night students, and the sample mean GPA is 2.06 with a standard deviation of 0.44 You sample 35 day students, and the sample mean GPA is 2.49 with a standard deviation of 0.45 Calculate the test statistic, 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 .025 significance level.

The sample consisted of 35 night students, with a sample mean GPA of 2.13 and a standard deviation of 0.04, and 55 day students, with a sample mean GPA of 2.15 and a standard deviation of 0.08. The test statistic is: (to 2 decimals) The critical value is: (to 2 decimals)

Calculate the test-statistic, t with the following information. n1=30, x1=2.82, s1=0.83 n2=20, x2=3.19, s2=0.31 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 null and alternative hypothesis would be:

The sample consisted of 75 night students, with a sample mean GPA of 3 and a standard deviation of 0.08, and 75 day students, with a sample mean GPA of 3.01 and a standard deviation of 0.06. The test statistic is: (to 2 decimals)

The p-value is: (to 2 decimals)