Ch9. 13. A large on-demand, video streaming company is designing a large-scale survey to determine the mean amount of ti

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Ch9. 13. A large on-demand, video streaming company is designing a large-scale survey to determine the mean amount of ti

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Ch9. 13.
A large on-demand, video streaming company is designing alarge-scale survey to determine the mean amount of time corporateexecutives watch on-demand television. A small pilot survey of 10executives indicated that the mean time per week is 18 hours, witha standard deviation of 4.5 hours. The estimate of the mean viewingtime should be within 30 minutes. The 98% level of confidence is tobe used. (Use z Distribution Table.)How many executives should besurveyed? (Roundthe z score to 2 decimal places and final answerto the next whole number.)
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