7. Which multiple comparison method to use Suppose you have conducted a study in which you have five random samples from five populations. Assume that each of the populations are normally distributed with the same variance. You collect samples of sizes 24, 26, 20, 24, and 25 from each of the five populations, respectively. You carefully consider your research objectives prior to performing any hypothesis tests. You decide you want to identify which populations to focus on in further research. Given your research objectives, which of the following is your best strategy? O Perform 10 t-tests for independent samples among all pairs of populations. O Focus on the populations with the largest and the smallest sample means among the five sample means. O Use Fisher's LSD method to compare the means of all pairs of populations. O Perform an analysis of variance. If it is significant, use Fisher's LSD method to compare the means of all pairs of populations. Suppose you plan to use Tukey's HSD test. You should use ng = as the number of observations in each of the samples