Conclusion Confidence Interval

Question

We have created a 95% confidence interval for μ with the result (148, 196). What conclusion will we make if we test H0: μ = 190 vs. Ha:μ ≠ 190 at α = 5%?

Reject the alternative hypothesis

Reject the null hypothesis

Fail to reject the null hypothesis



Type I error

Answer 1

Fail to reject the null hypothesis because 190 is included in the confidence interval, so it makes it a plausible value for the population mean.