subject
Mathematics, 14.03.2020 00:57 knikni06

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 56 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 ?=28.29 and ?=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 56 counties will be less than $33 million. Report your answer to four decimal places.

P(x??<33)=

Use the CLT again to determine the probability that the mean taxable wages in James' sample of 56 counties will be greater than $30 million. Report your answer to four decimal places.

P(x??>30)=

ansver
Answers: 2

Another question on Mathematics

question
Mathematics, 21.06.2019 13:40
Although changes result from business transactions, the equality of the fundamental bookkeeping equation must remain. t/f
Answers: 2
question
Mathematics, 21.06.2019 17:30
If i have one apple and give you the apple, how many apples do i have?
Answers: 2
question
Mathematics, 21.06.2019 18:00
What is the rate of change of a line that passes through (2,-5) and (6,-2)?
Answers: 2
question
Mathematics, 21.06.2019 22:30
Ineed big ! the cost of a school banquet is $25 plus $15 for each person attending. create a table, sketch the graph, and write an equation in slope-intercept and point-slope form that gives total cost as a function of the number of people attending. what is the cost for 77 people?
Answers: 1
You know the right answer?
The United States Bureau of Labor Statistics (BLS) conducts the Quarterly Census of Employment and W...
Questions
question
Mathematics, 04.09.2020 14:01
question
Biology, 04.09.2020 14:01
question
Spanish, 04.09.2020 14:01
Questions on the website: 13722367