Which is a valid null hypothesis? A)H₀: μ ≠ 18 B)H₀: μ = 18 C)H₀: μ 18 D)H₀: μ

Question

Which is a valid null hypothesis? A)H₀: μ ≠ 18 B)H₀: μ = 18 C)H₀: μ > 18 D)H₀: μ < 18

Quizplus · Accepted Answer

A valid null hypothesis is always an equality statement, therefore option B is the only valid null hypothesis as it states that the population mean is equal to 18. Options A, C and D are alternative hypotheses that make a claim about the population mean being different, greater or lesser than 18, respectively.

Which Is a Valid Null Hypothesis