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 12. A sample of 90 households is drawn. (e) Do you think it would be unusual for an individual household to have fewer than 2 TV sets? Explain. Assume the population is approximately normal. Round your answer to at least four decimal places. It be unusual for an individual household to have fewer than 2 TV sets, since the probability is l l. would How many computers? In a simple random sample of 155 households, the sample mean number of personal computers was 1.79. Assume the population standard deviation is G : 0.49. (b) If the sample size were 190 rather than 155, would the margin of error be larger or smaller than the result in part (a)? Explain. The margin of error would be (Choose one) V , since (Choose one) V in the sample size will (Choose one) V the standard error