Suppose that the mean daily viewing time of television is 8.35 hours per household. Use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household. a. What is the probability that a household views television between 5 and 9 hours a day (to 4 decimals)? b. How many hours of television viewing must a household have in order to be in the top 4% of all television viewing households (to 2 decimals)? hours c. What is the probability that a household views television more than 5 hours a day (to 4 decimals)?
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The mean (\(\mu\)) is 8.35 hours, and the standard deviation (\(\sigma\)) is 2.5 hours. We will use the standard normal distribution (Z-distribution) to find probabilities and percentiles. ### a. Probability that a household views television between 5 and 9 hours Show more…
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Suppose that the mean daily viewing time of television is 8.35 hours per household. Use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household. a. What is the probability that a household views television between 5 and 9 hours a day (to 4 decimals)? b. How many hours of television viewing must a household have in order to be in the top 5% of all television viewing households (to 2 decimals)? hours c. What is the probability that a household views television more than 5 hours a day (to 4 decimals)?
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Suppose that the mean daily viewing time of television is 8.35 hours per household. Use a normal probability distribution with a standard deviation of 2.5 hours to answer the following questions about daily television viewing per household. a. What is the probability that a household views television between 3 and 9 hours a day? (4 decimals) b. How many hours of television viewing must a household have in order to be in the top 3% of all television viewing households? (2 decimals) c. What is the probability that a household views television more than 4 hours a day? (4 decimals)
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Television viewing reached a new high when the Nielsen Company reported a mean daily viewing time of 8.35 hours per household $(U S A$ Today, November $11,2009) .$ Use a normal probability distribution with a standard deviation of 2.5 hours to answer to answer the following questions about daily television viewing per household. a. What is the probability that a household views television between 5 and 10 hours a day? b. How many hours of television viewing must a household have in order to be in the top 3$\%$ of all television viewing households? c. What is the probability that a household views television more than 3 hours a day?
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