A researcher states the following hypotheses: H₀: μDogs = μCats and H₁: μDogs ≠ μ Cats. Assuming she collects data from 9 dogs and 9 cats, what is the appropriate critical value? A) 1.734 B) 2.120 C) 2.110 D) 2.101

Question

Quizplus · Accepted Answer

Since the alternative hypothesis includes the "not equal to" symbol, this indicates a two-tailed test. With a sample size of 9 for both dogs and cats, the appropriate critical value at a significance level of 0.05 is t = 2.120 (from a t-distribution with 16 degrees of freedom). Therefore, the correct answer is B.

A Researcher States the Following Hypotheses: H0: μDogs = μCats

A Researcher States the Following Hypotheses: H₀: μDogs = μCats