An emergency room in a hospital wants to determine the sample size needed for estimating their mean number of visits per day. If they want a 99 percent confidence level the correct critical value to use is 2.33.

Question

Quizplus · Accepted Answer

The critical value for a 99 percent confidence level is approximately 2.576, not 2.33. The value of 2.33 is closer to the critical value for a 98 percent confidence level.

An Emergency Room in a Hospital Wants to Determine the Sample