Question

Imagine you and your 10 study group partners are interested in whether all those
hours you spent together working on statistics problems for midterm exam 2 actually
helped your group’s performance on that exam relative to its performance on the first
midterm exam. Suppose the first and second midterm grades were as follows:

Name------------------------------------------------------Midterm 1---------------Midterm 2

Homer	25	28
Marg	20	19
Bart	15	21
Lisa	16	25
Maggie	30	30
Apu	20	22
Eddie	19	19
Krusty	5	0
Itchy	29	30
Scratchy	29	28
You	24	30

Is there sufficient evidence (at α = .05) to conclude that the group performed better
on midterm 2? Please provide all your calculations.

Answer 1