1. A professor wants to examine how he can increase his students test scores. To test this, he introduces a study guide for his students to use to prepare for the exam. To test the effectiveness of his study guide, he randomly selects 10 students from his class and sees their test scores before the introduction of the study guide, and after. Determine whether the study guide significantly increased test scores. (40 pts)

Participant	Before Guide	After Guide
1	67	82
2	69	84
3	71	87
4	75	89
5	70	89
6	80	90
7	82	92
8	65	83
9	59	80
10	66	85

1. Which statistical tests would you use to evaluate if the study guide significantly increased test scores? (10 pts)

1. What is the significance (p-value) of the test? Is this statistically significant? (5 pts)

1. Write a sentence describing the overall results of the statistical analysis. (10 pts)

1. Write a sentence describing the difference between groups. (10 pts)

1. Graph the means and SEM for the groups using Excel. (5 pts)