33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itimized deductions on their federal income tax return. Mean amount of deductions for this population of taxpayers was $16,642. Standard Deviation =$2,380. Round to 2

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018

18th Edition

ISBN:9780079039897

Author:Carter

Publisher:Carter

Chapter10: Statistics

Section10.5: Comparing Sets Of Data

Problem 9PPS

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Question

100%

33% of taxpayers with adjusted gross incomes between $30,000 and $60,000 itimized deductions on their federal income tax return. Mean amount of deductions for this population of taxpayers was $16,642. Standard Deviation =$2,380. Round to 2 zero's if required.What are Sampling distributions of x bar for itimized deductions for this population of taxpayers for each of the population of sample size :30,50,100,400?

Expected value of x=$16,642

30=?

50=?

100=$238.00

400=$119.00

Definition Definition Number of subjects or observations included in a study. A large sample size typically provides more reliable results and better representation of the population. As sample size and width of confidence interval are inversely related, if the sample size is increased, the width of the confidence interval decreases.

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