subject
Mathematics, 28.06.2021 05:40 kissesforlester7097

The Wall Street Journal reports that 33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itemized deductions on their federal income tax return. The mean amount of deductions for this population of taxpayers was $16,642. Assume the standard deviation is $2,400. What is the probability that a sample of taxpayers from this income group who have itemized deductions will show a sample mean within $200 of the population mean for each of the following sample sizes: 30, 60, 100, and 300? (Round your answers to four decimal places.)

sample size n = 30:

sample size n = 60:

sample size n = 100:

sample size n = 300:

ansver
Answers: 3

Another question on Mathematics

question
Mathematics, 21.06.2019 15:30
David must install fencing around a lot that is shaped like a right angle.the side of lot that runs east-west is 200 ft long.the side of the lot runs north-south is 125 ft long.calculate how many feet of fencing he will need to surround the entire lot.
Answers: 2
question
Mathematics, 21.06.2019 18:10
Which point is a solution to y s 4x + 5?
Answers: 2
question
Mathematics, 21.06.2019 19:00
1. writing an equation for an exponential function by 2. a piece of paper that is 0.6 millimeter thick is folded. write an equation for the thickness t of the paper in millimeters as a function of the number n of folds. the equation is t(n)= 3. enter an equation for the function that includes the points. (-2, 2/5) and (-1,2)
Answers: 1
question
Mathematics, 21.06.2019 20:30
Write two point-slope equations for the line passing through the points (6, 5) and (3, 1)
Answers: 1
You know the right answer?
The Wall Street Journal reports that 33% of taxpayers with adjusted gross incomes between $30,000 an...
Questions
question
Mathematics, 19.05.2021 18:00
question
Mathematics, 19.05.2021 18:00
question
Mathematics, 19.05.2021 18:00
question
Mathematics, 19.05.2021 18:00
Questions on the website: 13722362