Example: Confidence Interval for One-Sample Means

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

From the Type of confidence interval drop-down list, select One-sample mean.

Under the Solve For heading, select Prob(Width).

For the half width, enter 14.

For the standard deviation, enter 8.

For the sample size, enter 50.

To run the task, click .