Question: (a) What is the probability that the sample mean tax is less than ? Round the answer to at least four decimal places.The probability that

(a) What is the probability that the sample mean tax is less than ? Round the answer to at least four decimal places.The probability that the sample mean tax is less than is .

Taxes: The Internal Revenue Service reports that the mean federal income tax paid in the year 2010 was $8040. Assume o0 that the standard deviation is $4700. The IRS plans to draw a sample of 1000 tax returns to study the effect of a new tax law. Part: 0 / 5 E'o Part 1 of 5 (a) What is the probability that the sample mean tax is less than $8000? Round the answer to at least four decimal places. ollo The probability that the sample mean tax is less than $8000 is E] ' - ' X =

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