Example 7.11.1 PSS

Measure the PSS of a 1 sample t

Establish the sample size that you would need for a 1 sample t test where you had a Power of 90% under the following conditions

1) A one-

2) You are interested in being able to detect a difference of 3

3) The historical StDev has been 5.

1. Click Stat <<Power & Sample Size<< 1 Sample t

2. Complete the menu as shown and click OK to execute the procedure.

The power curve shows that 26 samples will be required to meet the test conditions.