Choosing a Statistical Test for Comparing Means
To compare the effectiveness of three medications for reducing blood pressure, a researcher randomly assigned 60 patients with high blood pressure to three equal-sized groups. Each group received one of the three medications, and the subsequent reduction in blood pressure was recorded for each patient. The data for each group are approximately normally distributed with similar variances. Which of the following procedures would be least appropriate for analyzing the data?
A
ANOVA followed by Tukey’s HSD post-hoc test
B
Multiple two-sample t-tests with Bonferroni correction
C
One-way ANOVA
D
Kruskal-Wallis test
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