Which of the following will not increase the width of a confidence interval? A)Increase the percentage of confidence from 80% to 90% B)Reduce the sample size from n = 25 to n = 16 C)Increase the sample mean from M_D = 2 to M_D = 4 D)All of the other options will increase the width of a confidence interval.

Question

Quizplus · Accepted Answer

Increasing the sample mean will actually decrease the width of the confidence interval, as it will result in a more precise estimate of the population parameter. Options A and B will increase the width of the interval, and option D states that all other options will increase the width, which is true except for option C.

Which of the Following Will Not Increase the Width of a Confidence