Probability all watch television more than seven hours a day

Reference no: EM13148594

The amount of time spent by North American adults watching television per day is normally distributed with a mean of 6 hours and a standard deviation of 1.5 hours. What is the probability that the average time watching television by a random sample of five North American adult is more than 7 hours a day? What is the probability that in random sample of 5 north American adults, all watch television more than 7 hours a day?

Reference no: EM13148594

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