Television viewing reached a new high when the Nielsen Company reported a mean daily viewing time of 8.35 hours per household ( USA Today, November 11, 2009). 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 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?
STATISTICS F/BUSINESS+ECONOMICS-TE...
STATISTICS F/BUSINESS+ECONOMICS-TE...
Television viewing reached a new high when the Nielsen Company reported a mean daily viewing time of 8.35 hours per household (USA Today, November 11, 2009). 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 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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