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The Cinema Advertising Council is conducting a study to estimate the average number of minutes moviegoers spend at the theater before the previews begin. The study researcher desires a 5-minute margin of error at 99% confidence. The population standard deviation is unknown, so a best guess is used as the planning value for o. The council estimates that the smallest amount of time spent at the theater in the population of moviegoers is 5 minutes (a moviegoer arrives 5 minutes late), and the largest amount of time spent at the theater is 25 minutes. A rough approximation of the population standard deviation is Use the Distributions tool to help to answer the question that follows. Seiect a Distribution 7 To satisfy the requirement for the margin of error, a sample size no smaller than is needed