Compare Means from Summary Statistics

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If you have only summary statistics, Fathom can still perform a comparison of means.

1.	Make a hypothesis test object by dragging one from the shelf or by choosing Object \| New \| Hypothesis Test. Choose Compare Means from the test’s pop-up menu.

2.	Edit the blue text with the values for count, mean, and standard deviation for each group.

Notice that you can use values with units. (The values here are millimeters of mercury used to measure blood pressure.)

Linking values in the test to sliders can be very informative. See Use Sliders to Vary Summary Information in a Statistical Object.