Suppose We Want to Test H₀ : µ ? 30 $\overline{X}$

Multiple Choice

Suppose we want to test H₀ : µ ? 30 versus H₁ : µ < 30. Which of the following possible sample results based on a sample of size 36 gives the strongest evidence to reject H₀ in favor of H₁?

A) $\overline{X}$ = 27, s = 4
B) $\overline{X}$ = 32, s = 2
C) $\overline{X}$ = 26, s = 9
D) $\overline{X}$ = 28, s = 6