Complete the following steps to specify the data for the power and sample size calculation.
If you enter multiple values into a field, separate the values with a space. You can also use shorthand notation to indicate multiple values. For example, you can enter 10:40/5 to indicate sample sizes from 10 to 40 in increments of 5.
If you select Less than on the Options sub-dialog box, enter a negative difference. Otherwise, enter a positive difference.