TV sets: According to the Nielsen Company, the mean number of TV sets in a U.S. household in 2013 was 2.24. Assume the standard deviation is 1.3. A sample of 90 households is drawn. (b) What is the probability that the sample mean number of TV sets is between 2.5 and 3? Round your answer to at least four decimal places. The probability that the sample mean number of TV sets is between 2.5 and 3 is ___. (c) Would it be unusual for the sample mean to be less than 2? Round your answer to four decimal places. It (Choose one) unusual because the probability of the sample mean being less than 2 is __. (d) Do you think it would be unusual for an individual household to have fewer than 2 TV sets? Explain. Assume the populatic is approximately normal. Round your answer to four decimal places. It (Choose one) 7 be unusual for an individual household to have fewer than 2 TV sets, since the probability is ___.
TV sets: According to the Nielsen Company, the
(b) What is the
The probability that the sample mean number of TV sets is between 2.5 and 3 is ___.
(c) Would it be unusual for the sample mean to be less than 2? Round your answer to four decimal places.
It (Choose one) unusual because the probability of the sample mean being less than 2 is __.
(d) Do you think it would be unusual for an individual household to have fewer than 2 TV sets? Explain. Assume the populatic is approximately normal. Round your answer to four decimal places.
It (Choose one) 7 be unusual for an individual household to have fewer than 2 TV sets, since the probability is ___.
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