In an independent groups design the nondirectional alternative hypothesis states _________. A) µ 1 µ 2 B) µ 1

Question

In an independent groups design the nondirectional alternative hypothesis states _________.
A) µ 1 > µ 2
B) µ 1< µ 2
C) µ 1 ≠ µ 2
D) µ 1 = µ 2

Quizplus · Accepted Answer

The nondirectional alternative hypothesis states that there is a difference between the two groups being compared, but does not specify whether one group has a higher or lower mean. Instead, it simply states that the means for the two groups are not equal, indicating that there is some sort of effect present. Choice A is a directional hypothesis indicating that Group 1 has a higher mean than Group 2. Choice B is a directional hypothesis indicating that Group 2 has a higher mean than Group 1. Choice D is a null hypothesis indicating that there is no difference between the two groups.

In an Independent Groups Design the Nondirectional Alternative Hypothesis States