Comparing the average northern and southern tree diameter.
Chapter , Problem 16.75(choose chapter or problem)
Comparing the average northern and southern tree diameter. In Exercise 7.107 (page 480), the standard deviations of tree diameters for the northern and southern regions of the tract were compared. This test is unreliable because it is sensitive to non-Normality of the data. Perform a permutation test using the F statistic (ratio of sample variances) as your statistic. What do you conclude? Are the two tests comparable? N
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