QUESTION

# Kelley is comparing the mean weights of five different species of penguins.

Dr. Kelley is comparing the mean weights of five different species of penguins. She conducted a one-way analysis of variance which was statistically significant, but did not tell her which pairs are different from one another. She wants to know which pairs of species are significantly different from one another. She isn't sure if she should conduct multiple independent t-tests or if she should use Tukey's Honestly Significant Differences Test. Which should she use and why?

A)

Dr. Kelley should use multiple independent t-tests because they will inflate the true alpha level across all of the tests.

B)

Dr. Kelley should use multiple independent t-tests because they will not inflate the true alpha level across all of the tests.

C)

Dr. Kelley should use Tukey's Honestly Significant Differences Test because it will not inflate the true alpha level across all of the tests.

D)

Dr. Kelley should use Tukey's Honestly Significant Differences Test because it will inflate the true alpha level across all of the tests.