A newspaper article reported that people spend a mean of 7.5 hours per day watching TV, with a standard deviation of 1.7 hours. A psychologist would like to conduct interviews with the 20% of the population who spend the most time watching TV. She assumes that the daily time people spend watching TV is normally distrmbuted. At least how many hours of daily TV watching are necessary for a person to be eligible for the interview? Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place. hours

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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A newspaper article reported that people spend a mean of 7.5 hours per day watching TV, with a standard deviation of 1.7 hours. A psychologist would like to
conduct interviews with the 20% of the population who spend the most time watching TV. She assumes that the daily time people spend watching TV is
normally distrmbuted. At least how many hours of daily TV watching are necessary for a person to be eligible for the interview? Carry your intermediate
computations to at least four decimal places. Round your answer to one decimal place.
hours
Transcribed Image Text:A newspaper article reported that people spend a mean of 7.5 hours per day watching TV, with a standard deviation of 1.7 hours. A psychologist would like to conduct interviews with the 20% of the population who spend the most time watching TV. She assumes that the daily time people spend watching TV is normally distrmbuted. At least how many hours of daily TV watching are necessary for a person to be eligible for the interview? Carry your intermediate computations to at least four decimal places. Round your answer to one decimal place. hours
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