You Collect Data on the Length Sales Calls from Four

Multiple Choice

You collect data on the length sales calls from four departments within an organization. Which of the following would the appropriate representation of the alternative hypothesis?

A) μ₁ ≠ μ₂ ≠ μ₃ ≠ μ₄
B) at least two means differ
C) all of the means differ
D) all of these