You are testing the claim that the mean GPA of night students is different from the mean GPA of day students. You sample 30 night students, and the sample mean GPA is 2.35 with a standard deviation of 0.46. You sample 25 day students, and the sample mean GPA is 2.58 with a standard deviation of 0.47. Test the claim using a 5
1) The null hypothesis is that the mean GPA of night students is equal to the mean GPA of day students.
2) The null hypothesis is that the mean GPA of night students is less than the mean GPA of day students.
3) The null hypothesis is that the mean GPA of night students is greater than the mean GPA of day students.
4) The null hypothesis is that the mean GPA of night students is not equal to the mean GPA of day students.