A non-directional alternative hypotheses for a z-test can be represented as
A) H₁: μ ≤ 60.
B) H₁: μ ≠ 60.
C) H₁: μ ≥ 60.
D) either "a" or "c" above.

Question

Quizplus · Accepted Answer

A non-directional alternative hypothesis is one that simply states that the mean is not equal to a certain value, without specifying whether it is greater than or less than that value. Therefore, the correct choice for a non-directional alternative hypothesis for a z-test is option B: H₁: μ ≠ 60.

A Non-Directional Alternative Hypotheses for a Z-Test Can Be Represented