A sample is used to obtain a 95% confidence interval for the mean of a population.The confidence interval goes from 10.89 to 13.21.If the same sample had been used to test H₀: μ = 12 vs.H₁: μ ≠ 12,H₀ could not be rejected at the 0.05 level.

Question

Quizplus · Accepted Answer

Since the confidence interval includes the value of 12 (the null hypothesis mean), we cannot reject H₀ at the 0.05 level. Therefore, option A is true.

A Sample Is Used to Obtain a 95% Confidence Interval