Statistics for Six Sigma Green Belts with Minitab and JMP

Appendix 7.1 Using Minitab for Hypothesis Testing

Testing for the Difference Between Two Proportions

To test the hypothesis for the difference in the proportion of rooms not ready between Wing A and Wing B illustrated in Figure 7.2 on page 123, select Stat → Basic Statistics → 2 Proportions.

1. In the 2 Proportions (Test and Confidence Interval) dialog box (see Figure A7.1), select the Summarized data option button. In the First: row, enter 200 in the Trials: edit box and 8 in the Events: edit box. In the Second: row, enter 200 in the Trials: edit box and 14 in the Events: edit box.

   Figure A7.1. Minitab 2 Proportions (Test and Confidence Interval) Dialog Box

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2. Click the Options button. In the 2 Proportions—Options dialog box ...