When the level of confidence and sample proportion remain the same,a confidence interval for a population proportion p based on a sample of n = 100 will be ______________ a confidence interval for p based on a sample of n = 400.
A) wider than
B) narrower than
C) equal to

Question

Quizplus · Accepted Answer

A confidence interval is wider for smaller sample sizes. Since n = 100 is smaller than n = 400, the confidence interval for n = 100 will be wider.

When the Level of Confidence and Sample Proportion Remain the Same,a