**Help**

- Enter probabilities for the null hypothesis (P0) and the alternative hypothesis (PA).
- Push the
*Step 1: Calculate Sample Size*button - The browser window is updated to show sample sizes N1 and N2. The
calculation option on this new window is
*Step 2: Calculate Critical Values*. - You may change sample size values, and P0 and PA, if you choose.
- Push the
*Step 2: Calculate Critical Values*button - The browser window is updated to show the critical values (A1, A2, R1,
R2). The calculation option on this new window is
*Step 3: Calculate Probabililities*. - You may now change the critical values, the sample size values, and P0 and PA, if you choose.
- Push the
*Step 3: Calculate Probabilities*button to update the browser window with the probability results. - From this results window, you may change P0, PA, N1, N2, A1, A2, R1, or R2 and re-calculate the probabilities.
- To save the results, print the results window using the Print facility of your Web browser.

Definitions of program parameters