Example: One-Sample t Test for Mean

In the Tasks section, expand the Power and Sample Size folder, and then double-click t Tests. The user interface for the t Tests task opens.

From the Type of t test drop-down list, select One-sample test.

From the Select the number of sides of the test drop-down list, select Two-sided test.

For the mean, enter 8.

For the standard deviation, enter 40.

For the sample size, enter 150.

To run the task, click .