Statistics for Six Sigma Green Belts with Minitab and JMP

Computing Poisson Probabilities

You can use JMP to compute Poisson probabilities. Referring to the example in Section 5.5 in which the mean = 3, you find the Poisson probabilities of two or fewer successes as follows:

1. Open a new JMP data table.

2. Select Cols → New Column.

3. Select the Column Properties button. Select Formula from the pop-up menu.

4. In the dialog box that appears (see Figure A5.6), select Probability → Poisson Distribution.

5. In the edit box that begins with Poisson Distribution, enter 3 for lambda, the mean number of successes, and 2 for k [defined in Equation (5.6) as x], the number of successes. Click the OK button. In the New Column dialog box, click the OK button.

Double-click on row 1 of the data table to add a row. JMP returns the ...