Like Dr. Couldnotbewrong and Dr. Knowitall, Dr. Imbetterthanboth also investigated whether a new teaching method between Exam 1 and Exam 2 would improve exam scores. All three instructors also tried a third instructional approach between Exam 2 and Exam 3. Perform an ANOVA to determine if the different teaching strategies produced differences in the three sets of exam scores. Use information below to help you

Descriptive Statistics

Group	Mean	SD	Sem	n
Ex2	84.93	10.01	1.83	30
Ex3	84.13	10.87	1.99	30
Ex1	81.10	12.10	2.21	30

Inferential Statistics

Sources		Sums of Squares	Degrees of Freedom	Mean Square	FScore	p
Between		245.36	2	122.68	1.38	.261
Within		10,582.03	87
	Subjects	5,412.72	29
	Error	5,169.31	58	89.13
Total		10,827.39	89

Post-Hoc Tests (Sidak)

Group 1	Group 2	Mean (Group 1)	Mean (Group 2)	Mean Diff	p	Decision
Ex2	Ex3	84.93	84.13	0.80	.987	Fail to reject the null hypothesis
Ex2	Ex1	84.93	81.10	3.83	.073	Fail to reject the null hypothesis
Ex3	Ex1	84.13	81.10	3.03	.649	Fail to reject the null hypothesis

Answer questions 1-3

1. Fill in the following information:

H₀: H_a:

2. Which hypothesis is supported by the analysis (circle one)?

H₀ H_a

3. In words, describe what the results of the analysis indicate.