Course Project – Phase 5

 Correct the mistakes in the attachment.

2 – Review the definitions for independent and dependent samples; you never stated the relationship?

3 – Conclusion in non-technical terms was missing;

4 – show work for t; This is a one-tailed t-test for independent samples with -2.378 as the critical value; confidence interval was correct, but what does it mean? If it includes 0, what does that say about the difference? see example #4-5 in the Mod 4 course materials titled Inferences from Two Samples and Working with Dependent Samples; 

5 – 6: show work in #6; This is a one-tailed t-test for dependent samples with -4.604 as the critical value; see example #7 in the Mod 4 course materials titled Inferences from Two Samples and Working with Dependent Samples;