In comparing the difference of the means between two groups, the null hypothesis can be stated as:
A) $\mu$1 - $\mu$2 = 0.
B) $\mu$1 + $\mu$2 = 0.
C)$\mu$1 x $\mu$2 = 0.
D) $\mu$1 /$\mu$2 = 0.

Question

Quizplus · Accepted Answer

The null hypothesis for comparing the difference of the means between two groups is that the difference between the population means of the two groups is equal to zero. This can be written as (mean of Group 1 - mean of Group 2) = 0, which is equivalent to option A.

In Comparing the Difference of the Means Between Two Groups μ\muμ

In Comparing the Difference of the Means Between Two Groups $\mu$