Note: The Fit Group menu appears if you have specified multiple Y or X variables. Menu options allow you to arrange reports or order them by RSquare. See the Fitting Linear Models book for more information.
Oneway anova reports




Fits means for each group and performs a oneway analysis of variance to test if there are differences among the means. See Means/Anova and Means/Anova/Pooled t.
The Means/Anova/Pooled t option appears only if the X factor has two levels.


Performs four tests for equality of group variances. Also gives the Welch test, which is an anova test for comparing means when the variances within groups are not equal. See Unequal Variances.


Set α Level

You can select an option from the most common alpha levels or specify any level with the Other selection. Changing the alpha level results in the following actions:






Draws a horizontal line through the mean of each group proportional to its xaxis. The top and bottom points of the mean diamond show the upper and lower 95% confidence points for each group. See Mean Diamonds and XAxis Proportional.


Draws the overall mean of the Y variable on the plot.


Shows or hides comparison circles. This option is available only when one of the Compare Means options is selected. See Statistical Details for Comparison Circles.


Makes the spacing on the xaxis proportional to the sample size of each level. See Mean Diamonds and XAxis Proportional.


Adds small spaces between points that overlay on the same y value. The horizontal adjustment of points varies from 0.375 to 0.625 with a 4*(Uniform0.5)5 distribution.


(Only appears when the Matching Column option is selected.) Connects matching points.


Only appears when the Matching Column option is selected.) Draws dotted lines to connect cell means from missing cells in the table. The values used as the endpoints of the lines are obtained using a twoway anova model.

