# Question: Based on data obtained from A C Nielsen the mean

Based on data obtained from A. C. Nielsen, the mean number of televisions in a household in the United States is 2.24. Assume that the population standard deviation number of television sets in the United States is 1.38.

(a) Do you believe the shape of the distribution of number of television sets follows a normal distribution? Why or why not?

(b) A random sample of 40 households results in a total of 102 television sets. What is the mean number of televisions in these 40 households?

(c) What is the probability of obtaining the sample mean obtained in part (b) if the population mean is 2.24? Does the statistic from part (b) contradict the results reported by A. C. Nielsen?

(a) Do you believe the shape of the distribution of number of television sets follows a normal distribution? Why or why not?

(b) A random sample of 40 households results in a total of 102 television sets. What is the mean number of televisions in these 40 households?

(c) What is the probability of obtaining the sample mean obtained in part (b) if the population mean is 2.24? Does the statistic from part (b) contradict the results reported by A. C. Nielsen?

**View Solution:**## Answer to relevant Questions

A Gallup survey indicated that 72% of 18- to 29-year-olds, if given a choice, would prefer to start their own business rather than work for someone else. A random sample of 600 18- to 29-year-olds is obtained today. (a) ...A machine used for ﬁlling plastic bottles with a soft drink has a known standard deviation of σ = 0.05 liter. The target mean ﬁll volume is µ = 2.0 liters. (a) Describe the sampling distribution of x̄, the sample mean ...Determine µx̄ and σx̄ from the given parameters of the population and the sample size. µ = 64, σ = 18, n = 36 A simple random sample of size n = 20 is obtained from a population with µ = 64 and σ = 17. (a) What must be true regarding the distribution of the population in order to use the normal model to compute probabilities ...The Food and Drug Administration sets Food Defect Action Levels (FDALs) for some of the various foreign substances that inevitably end up in the food we eat and liquids we drink. For example, the FDAL for insect ﬁlth in ...Post your question