If we change a 95% confidence interval estimate to a 99% confidence interval estimate, we can expect
A)the size of the confidence interval to increase
B)the size of the confidence interval to decrease
C)the size of the confidence interval to remain the same
D)the sample size to increase

Question

Quizplus · Accepted Answer

Increasing the confidence level from 95% to 99% means we want to be more confident in our estimate, which requires a larger margin of error. Therefore, the size of the confidence interval will increase.

If We Change a 95% Confidence Interval Estimate to a 99