You can follow the discussion on Homework for Lesson Chapter 8:
Lesson 30: Testing the Difference Between Two Means: Using the z Test
Lesson 31:Testing the Difference Between Two Means of Independent Samples: Using the t Test
Lesson 32: Testing the Difference Between Two Means: Dependent Samples
Lesson 33: Testing the Difference Between Proportions
Lesson 34: Testing the Difference Between Two Variances without having to leave a comment. Cool, huh? Just enter your email address in the form here below and you’re all set.