Copyright © Rehman M Khan. All rights reserved.
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-way test where you are interested only if the alternate is greater than the null hypothesis2) You are interested in being able to detect a difference of 33) 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.