A random sample of n = 500 people was surveyed recently to determine an estimate for the proportion of people in the population who had attended at least some college. The estimate concluded that between 0.357 and 0.443 of the population had attended. Given this information, we can determine that the confidence level was approximately 95 percent.

Question

Quizplus · Accepted Answer

The range from 0.357 to 0.443 represents a confidence interval for the proportion of the population that had attended at least some college. A confidence interval of this nature, derived from a sample size of 500, typically corresponds to a 95% confidence level, indicating that we can be 95% confident that the true proportion lies within this interval. This is a common practice in statistics for estimating population parameters from sample data.

A Random Sample of N = 500 People Was Surveyed