The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and Wages (QCEW) and reports a variety of information on each county in America. In the third quarter of 2016, the QCEW reported the total taxable earnings, in millions, of all wage earners in all 3222 counties in America. Suppose that James is an economist who collects a simple random sample of the total taxable earnings of workers in 54 American counties during the third quarter of 2016. According to the QCEW, the true population mean and standard deviation of taxable earnings, in millions of dollars, by county are µ = 28.29 and o = 33.493, respectively. Let X be the total taxable earnings, in millions, of all wage earners in a county. The mean total taxable earnings of all wage earners in a county across all the counties in James' sample is x. Use the central limit theorem (CLT) to determine the probability P that the mean taxable wages in James' sample of 54 counties will be less than $31 million. Report your answer to four decimal places.
The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and Wages (QCEW) and reports a variety of information on each county in America. In the third quarter of 2016, the QCEW reported the total taxable earnings, in millions, of all wage earners in all 3222 counties in America. Suppose that James is an economist who collects a simple random sample of the total taxable earnings of workers in 54 American counties during the third quarter of 2016. According to the QCEW, the true population mean and standard deviation of taxable earnings, in millions of dollars, by county are µ = 28.29 and o = 33.493, respectively. Let X be the total taxable earnings, in millions, of all wage earners in a county. The mean total taxable earnings of all wage earners in a county across all the counties in James' sample is x. Use the central limit theorem (CLT) to determine the probability P that the mean taxable wages in James' sample of 54 counties will be less than $31 million. Report your answer to four decimal places.
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Transcribed Image Text:The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and Wages (QCEW)
and reports a variety of information on each county in America. In the third quarter of 2016, the QCEW reported the total
taxable earnings, in millions, of all wage earners in all 3222 counties in America.
Suppose that James is an economist who collects a simple random sample of the total taxable earnings of workers in 54
American counties during the third quarter of 2016. According to the QCEW, the true population mean and standard
deviation of taxable earnings, in millions of dollars, by county are µ =
28.29 and o =
33.493, respectively.
Let X be the total taxable earnings, in millions, of all wage earners in a county. The mean total taxable earnings of all wage
earners in a county across all the counties in James' sample is x.
Use the central limit theorem (CLT) to determine the probability P that the mean taxable wages in James' sample of 54
counties will be less than $31 million. Report your answer to four decimal places.
P(x< 31)=
Transcribed Image Text:Use the CLT again to determine the probability that the mean taxable wages in James' sample of 54 counties will be greater
than $28 million. Report your answer to four decimal places.
P (x > 28)=
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