21. Count Five Test for Comparing Variation in Two Populations See the example in this section and, instead of using the F test, use the following procedure for a “count five”

test of equal variation. What do you conclude?

a. For the first sample, find the mean absolute deviation (MAD) of each value. (Recall from Section 3-3 that the MAD of a sample value x is .) Sort the MAD values. Do the same for the second sample.