In testing for differences between the median of two independent populations, the null hypothesis is
A) H₀: MD = 0.
B) H₀: MD ≠ 0.
C) H₀: M₁ - M₂ = 0.
D) H₀: M₁ - M₂ ≠ 0.

Question

Quizplus · Accepted Answer

The null hypothesis for testing the median of two independent populations is that the difference between the two population medians is zero. Therefore, the correct option is H₀: M₁ - M₂ = 0 which is Choice C. Choice A (H₀: MD = 0) is incorrect because MD represents the difference between two medians, which does not provide information on the original medians themselves. Choice B (H₀: MD ≠ 0) and Choice D (H₀: M₁ - M₂ ≠ 0) are incorrect as they do not depict the null hypothesis for testing median differences.

In Testing for Differences Between the Median of Two Independent