When computing Tukey HSD with samples of different sizes, what additional step must be performed? A) Calculate a weighted sample size called a harmonic mean. B) Calculate HSD for each pair of means. C) Compare the means of all groups using Bonferroni first. D) Compute R².

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When computing Tukey HSD with samples of different sizes, we need to calculate a weighted sample size called a harmonic mean to adjust for the unequal sample sizes. This formula takes into account the magnitude of each sample size and calculates a single value that represents the effective sample size for the Tukey HSD test.

When Computing Tukey HSD with Samples of Different Sizes, What