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Basic Analysis and Graphing - SAS

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170 Performing Oneway <strong>Analysis</strong> Chapter 5<br />

Additional Examples of the Oneway Platform<br />

Figure 5.23 Comparison Circles for Four Multiple Comparison Tests<br />

From Figure 5.23, notice that for the Student’s t <strong>and</strong> Hsu methods, age group 15 (the third circle from the<br />

top) is significantly different from the control group <strong>and</strong> appears gray. But, for the Tukey <strong>and</strong> Dunnett<br />

method, age group 15 is not significantly different, <strong>and</strong> appears red.<br />

Example of the Unequal Variances Option<br />

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

1. Open the Big Class.jmp sample data table.<br />

2. Select Analyze > Fit Y by X.<br />

3. Select height <strong>and</strong> click Y, Response.<br />

4. Select sex <strong>and</strong> click X, Factor.<br />

5. Click OK.<br />

6. From the red triangle menu, select Unequal Variances.

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