Use the modified Levene test to determine if the assumption of equal variances is satisfied in Problem
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Use the modified Levene test to determine if the assumption of equal variances is satisfied in Problem 3-14. Use α = 0.05. Did you reach the same conclusion regarding the equality of variances by examining residual plots?
Problem 3-14.
Three brands of batteries are under study. It is suspected that the lives (in weeks) of the three brands are different. Five batteries of each brand are tested with the following results:
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