When the level of confidence and sample proportion $\hat { p }$
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 becomes narrower as the sample size increases. Therefore, with a larger sample size of n = 400 compared to n = 100, the confidence interval will be narrower.

When the Level of Confidence and Sample Proportion p^\hat { p }p^​

When the Level of Confidence and Sample Proportion $\hat { p }$