The Proportion Tests routine performs one-sample and two-sample Independent tests of proportions. Confidence intervals are also displayed for each proportion. Both exact and approximate tests are available.

**File**provides the ability__Save__or Print the output, or return to the__Main Form__.**Edit**allows__Editing Output Text__by cutting, copying, pasting, and undoing entry.**View**provides the ability to enlarge/reduce the Form size for easier viewing.**Help**provides access to this Website.

These buttons provide quick access to the following tasks.

- Returns to last Form or the
__Main Form__. -
__Saves__the output to a file. - Prints the Text.
- Copies Selection to the clipboard.
- Pastes Text from the clipboard
- Increases the Font.
- Decreases the Font.
- Brings up the
__Main Form__. - Brings up the Help file.
- Hides the form.

Enter the Proportion or Count from the first sample here.

Enter the sample size of the first sample here.

For two-sample tests, enter the Proportion or Count from the second sample here.

For one-sample tests, enter the Proportion for the Hypothesized Population parameter. When this value is zero, only the confidence interval will be output.

Enter the sample size of the second sample here.

When Unchecked, p1 and p2 proportions may be entered.

When Checked, np1 and np2 counts may be entered.

The confidence level used in calculations may be entered here. The value is expressed in percent. The confidence level may be changed by selecting and typing in the level, or by using a drop-down selection.

Select One-Sample or Two-Sample Tests to be conducted.

Selects Directional or Non-Directional Hypotheses tests to be conducted.

The calculation output is displayed here when is clicked. You may save, print, edit, cut, copy, and paste text in this area.

When Checked, Exact One-Sample Binomial Tests or Two-Sample Fisher-Exact Tests are conducted.

When Unchecked, approximate tests are used.

Changes the number of decimal places, from 0 to 9. Change may be made by selecting and typing in the number, or by using the incrementing buttons.

Performs calculations and displays output.