A population has a known mean of 65. A one-sample t test is conducted to determine if a treatment will influence scores on the dependent variable. What is the alternative hypothesis?
A) H₁: μ = 65
B) H₁: μ ≠ 65
C) H₁: μ 65
D) H₀: μ = 65

Question

A population has a known mean of 65. A one-sample t test is conducted to determine if a treatment will influence scores on the dependent variable. What is the alternative hypothesis?
A) H₁: μ = 65
B) H₁: μ ≠ 65
C) H₁: μ > 65
D) H₀: μ = 65

Quizplus · Accepted Answer

The alternative hypothesis, denoted by H₁, represents the possibility of there being a difference, relationship, or effect between variables. In this case, we are testing whether the treatment has an influence on the dependent variable, which means we are looking for a difference in scores before and after the treatment. Therefore, the alternative hypothesis is that the population mean is not equal to 65 (since the treatment may increase or decrease scores). Therefore, option B is the correct choice.

A Population Has a Known Mean of 65