A Study Wants to Investigate Whether the Population Variance Is

Multiple Choice

A study wants to investigate whether the population variance is greater than 8, if a random sample of size 40, yielded a variance of 10. Which of the following are the correct null hypothesis and alternative hypotheses?

A) Ho: σ² = 10 H_A: σ² > 10
B) Ho: s² = 10
H_A: s² > 10
C) Ho: s² = 8
H_A: s² > 8
D) Ho: σ² = 8
H_A: σ² > 8