Mathematics, 19.10.2019 03:10 harris435942

Asurvey 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 12 hours, with a standard deviation of 3 hours. it is desired to estimate the mean viewing time within one quarter hour. the 0.95 degree of confidence is to be used. how many executives should be surveyed?

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Asurvey is being planned to determine the mean amount of time corporation executives watch televisio...

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