A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 19 hours, with a standard deviation of 5.5 hours. It is desired to estimate the mean viewing time within one-quarter hour. The 98 percent level of confidence is to be used. How many executives should be surveyed? (Round up your answer to the next whole number.

Question

A survey is being planned to determine the mean amount of time corporation executives watch television. A pilot survey indicated that the mean time per week is 19 hours, with a standard deviation of 5.5 hours. It is desired to estimate the mean viewing time within one-quarter hour. The 98 percent level of confidence is to be used.    How many executives should be surveyed? (Round up your answer to the next whole number.

anonymous · Answer

I took statistics forever ago, so i'm rusty. Is there a total population size you have to work with?