Step 2: Write Section 2 of the DAA:Testing Assumptions

Test for one of the assumptions of t tests - homogeneity of variance..

• Interpret the Levene's test.
• interpret the 2-sides p-value.

Group Statistics
	review	N	Mean	Std. Deviation	Std. Error Mean
final	No	35	61.57	6.016	1.017
Yes	70	64.64	6.980	.834

Independent Samples Test Levene's Test for Equality of Variances t-test for Equality of Means 95% Confidence Interval of the Mean Std. Error Difference Sig. df Sig. (2-tailed) Difference Difference Lower Upper final Equal variances 2.024 .158 -2.222 103 028 -3.071 1.382 -5.813 -.330 assumed Equal variances not -2.335 77.807 022 -3.071 1.315 -5.690 -.453 assumed