The purpose of this activity is to give you guided practice in obtaining and interpreting a 95% confidence interval for μ1 − μ2 following a two-sample T-test that rejected H0. Recall our second example:
Click on the link corresponding to your statistical package to see instructions for completing the activity, and then answer the questions below.
R | StatCrunch | Minitab | Excel 2007 | TI Calculator
Obtain the 95% confidence interval for μ1 – μ2 and interpret it in context.