# Question

Suppose the adult American population is equally split in their belief that the amount of tax (federal, state, property, sales, and so on) they pay is too high.

(a) How many people would we expect to say they pay too much tax if we surveyed 1200 randomly selected adult Americans?

(b) Explain why we can use the Empirical Rule with the idea of unusual events (events that occur with relative frequency less than 0.05) to identify any unusual results in a survey of 1200 adult Americans.

(c) If a survey of 1200 adult Americans results in 640 stating they feel the amount of tax they pay is too high, would these results contradict the belief that adult Americans are equally split in their belief that the amount of tax they pay is too high? Why?

(a) How many people would we expect to say they pay too much tax if we surveyed 1200 randomly selected adult Americans?

(b) Explain why we can use the Empirical Rule with the idea of unusual events (events that occur with relative frequency less than 0.05) to identify any unusual results in a survey of 1200 adult Americans.

(c) If a survey of 1200 adult Americans results in 640 stating they feel the amount of tax they pay is too high, would these results contradict the belief that adult Americans are equally split in their belief that the amount of tax they pay is too high? Why?

## Answer to relevant Questions

Consider a binomial probability distribution with parameters n = 5 and p = 0.2. (a) Construct a binomial probability distribution with these parameters. (b) Compute the mean and standard deviation of the distribution. (c) ...Determine whether the random variable is discrete or continuous. In each case, state the possible values of the random variable. (a) The number of defects in a roll of carpet. (b) The distance a baseball travels in the air ...In the following probability distribution, the random variable X represents the number of activities a parent of a 6th- to 8th-grade student is involved in. x .... P(x) 0 .... 0.073 1 .... 0.117 2 .... 0.258 3 .... 0.322 4 ...The probability histogram represents the number of rooms in rented housing units in 2009. (a) What is the probability that a randomly selected rental unit has ﬁve rooms? (b) What is the probability that a randomly ...One question from the Sullivan Statistics Survey was “How many credit cards do you currently have?” This question was asked of only those individuals who have a credit card. Answer the following questions based on the ...Post your question

0