2 Proportions

This example applies to the Healthcare Module. For more information, go to www.minitab.com/healthcare-module.

Example

In this worksheet, the Readmissions Before and Recommend After columns contain the number of positive survey responses before and after a process improvement. The Number Before and Number After columns contain the total number of survey responses before and after the process improvement. You can enter these observations directly in the dialog box instead of storing them in the Minitab worksheet.

C1	C2	C3	C4
`Readmissions Before`	`Number Before`	`Recommend After`	`Number After`
278	326	634	645

How-to

From the Healthcare KPIs: Increase Patient Satisfaction dialog box, select 2 Proportions, then click OK.
From the drop-down list, select Summarized data.
In Number of events, enter the number of positive survey responses before and after the process improvement.
In Number of trials, enter the total number of surveys before and after the process improvement.
Click Options. In Alternative hypothesis, choose Difference > hypothesized difference.
Click OK.

Tip

For more information about this analysis, click Help in the main dialog box.