Two Stage program

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1. Enter probabilities for the null hypothesis (P0) and the alternative hypothesis (PA).
2. Push the Step 1: Calculate Sample Size button
3. 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.
4. You may change sample size values, and P0 and PA, if you choose.
5. Push the Step 2: Calculate Critical Values button
6. 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.
7. You may now change the critical values, the sample size values, and P0 and PA, if you choose.
8. Push the Step 3: Calculate Probabilities button to update the browser window with the probability results.
9. From this results window, you may change P0, PA, N1, N2, A1, A2, R1, or R2 and re-calculate the probabilities.
10. To save the results, print the results window using the Print facility of your Web browser.

Definitions of program parameters