Compare the means/medians of many independent samples.
Select a cell in the dataset.
On the Analyse-it ribbon tab, in the
Statistical Analyses group, click Compare Groups, and then click the multiple comparisons procedure.
The analysis task pane opens.
In the Y drop-down list, select the quantitative response variable.
In the X drop-down list, select the categorical factor variable identifying the groups.
In the Type drop-down list, select the comparisons, and then:
- If comparing with best, in the Best drop-down list, select the "best" group.
- If comparing against a control, in the Control drop-down list, select the control group.
To sort the contrasts by the magnitude of the difference, select the
Ordered check box.
In the Method drop-down list, select the multiple comparisons procedure, and in the Confidence interval edit box, type the confidence level as a percentage, or type - to suppress the confidence interval, and then in the Confidence bounds drop-down list, select the limits.
To perform a hypothesis test to test if the difference is equal to 0, select the Hypothesis test check box, and then to compare the p-value, in the Significance level edit box, type the predefined significance level.
To show a mean-mean scatter plot, select the Mean-Mean
scatter plot check box.