Example of the Unequal Variances Option

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Basic Analysis • Oneway Analysis • Additional Examples of the Oneway Platform • Example of the Unequal Variances Option

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Example of the Unequal Variances Option

Suppose you want to test whether two variances (males and females) are equal, instead of two means.

1.

Select Help > Sample Data Library and open Big Class.jmp.

2.

Select Analyze > Fit Y by X.

3.

Select height and click Y, Response.

4.

Select sex and click X, Factor.

5.

6.

From the red triangle menu, select Unequal Variances.

Figure 6.29 Example of the Unequal Variances Report

Since the p-value from the 2-sided F-Test is large, you cannot conclude that the variances are unequal.

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Help created on 3/19/2020