SOLUTION: A newspaper spent a mean of 7.5 hours watching tv per day with a standard deviation of 2.1 hours. A psychologisit conducted interviews with 10% of the population who watched tv.
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Question 136834: A newspaper spent a mean of 7.5 hours watching tv per day with a standard deviation of 2.1 hours. A psychologisit conducted interviews with 10% of the population who watched tv. She assumes that the tim watching tv is normally distributed. How many hours of daily tv is ncessary for a person to be eligible for the interview. Carry your intermediate comoputations to at least four decimal places. Round your answer to at least one decimal place.
Thank you. Answer by stanbon(75887) (Show Source):
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