Question

I want to determine if there are significant differences on final exams scores between 20 students who complete the extra statistics worksheets I post, and 20 who do not. The mean final exam score for students who complete the worksheets was an 88 (Ŝ=4.00), while the mean final exam score for students who did not complete the worksheets was a 79 ($ 6.00). Given an Spooled value of 5.15, complete this independent sample t-test by hand.

First, write your hypotheses.

Answer 1

The null hypothesis states no significant difference between the mean final exam scores of students who complete the worksheets and those who do not.

Step-by-step explanation:

The null hypothesis, denoted as H0, states that there is no significant difference between the mean final exam scores of students who complete the worksheets and those who do not.

The alternative hypothesis, denoted as H1, states that there is a significant difference between the means.

In this case, we would write:

H0: µ1 = µ2

H1: µ1 ≠ µ2