A magazine company is planning to survey customers to determine the proportion who will renew their subscription for the coming year. The magazine wants to estimate the population proportion with 99% confidence and a margin of error equal to 10.03. What sample size is required? Click the icon to view a table of critical values for commonly used confidence levels. The required sample size is customers. (Round up to the nearest whole number as needed.)Critical Values for Commonly Used Confidence Levels Confidence Level Critical Value 80% Z = 1.28 90% Z = 1.645 95% Z = 1.96 99% Z = 2.575 Print Done