Mathematics, 02.01.2020 01:31, cerna

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 19 hours, with a standard deviation of 5.0 hours. it is desired to estimate the mean viewing time within 30 minutes. the 99% level of confidence is to be used. (use z distribution table.)

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