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?


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  • CreatedApril 27, 2015
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