When the sample size and the sample proportion remain the same, a 90 percent confidence interval for a population proportion p will be ________ the 99 percent confidence interval for p.
A) wider than
B) narrower than
C) equal to

Question

When the sample size and the sample proportion  remain the same, a 90 percent confidence interval for a population proportion p will be ________ the 99 percent confidence interval for p.
A) wider than 
B) narrower than 
C) equal to

Quizplus · Accepted Answer

You are giving yourself 10% chance of error versus only 1% chance of error.

When the Sample Size and the Sample Proportion Remain