Homework Help is Here – Start Your Trial Now!
Math
Statistics
Taxes: The Internal Revenue Service reports that the mean federal income tax paid in the year 2010 was $8040. Assume 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 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. The probability that the sample mean tax is less than $8000 is Part 2 of 5 Part 3 of 5 (b) What is the probability that the sample mean tax is between $7600 and $8100? Round the answer to at least four decimal places. The probability that the sample mean tax is between $7600 and $8100 is X X 5 Ś (c) Find the 30th percentile of the sample mean. Round the answer to at least two decimal places. The 30th percentile of the sample mean is S X 5 Esp C G E E E

Taxes: The Internal Revenue Service reports that the mean federal income tax paid in the year 2010 was $8040. Assume 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 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. The probability that the sample mean tax is less than $8000 is Part 2 of 5 Part 3 of 5 (b) What is the probability that the sample mean tax is between $7600 and $8100? Round the answer to at least four decimal places. The probability that the sample mean tax is between $7600 and $8100 is X X 5 Ś (c) Find the 30th percentile of the sample mean. Round the answer to at least two decimal places. The 30th percentile of the sample mean is S X 5 Esp C G E E E

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.3: Measures Of Spread
Problem 11PPS
See similar textbooks
icon
Related questions
Question
Taxes: The Internal Revenue Service reports that the mean federal income tax paid in the year 2010 was $8040. Assume 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 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. The probability that the sample mean tax is less than $8000 is Part 2 of 5 Part 3 of 5 (b) What is the probability that the sample mean tax is between $7600 and $8100? Round the answer to at least four decimal places. The probability that the sample mean tax is between $7600 and $8100 is Part 4 of 5 (c) Find the 30th percentile of the sample mean. Round the answer to at least two decimal places. The 30th percentile of the sample mean is $ X X 3 Ś Part 5 of 5 (d) Would it be unusual if the sample mean were less than $7600? Round answer to at least four decimal places. It (Choose one) ▼ unusual because the probability of the sample mean being less than $7600 is S (e) Do you think it would be unusual for an individual to pay a tax of less than $7600? Explain. Assume the variable is normally distributed. Round the answer to at least four decimal places. (Choose one) ▼, because the probability that an individual to pays tax less than $7600 is X 3 Español ∞o B M
Transcribed Image Text:Taxes: The Internal Revenue Service reports that the mean federal income tax paid in the year 2010 was $8040. Assume 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 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. The probability that the sample mean tax is less than $8000 is Part 2 of 5 Part 3 of 5 (b) What is the probability that the sample mean tax is between $7600 and $8100? Round the answer to at least four decimal places. The probability that the sample mean tax is between $7600 and $8100 is Part 4 of 5 (c) Find the 30th percentile of the sample mean. Round the answer to at least two decimal places. The 30th percentile of the sample mean is $ X X 3 Ś Part 5 of 5 (d) Would it be unusual if the sample mean were less than $7600? Round answer to at least four decimal places. It (Choose one) ▼ unusual because the probability of the sample mean being less than $7600 is S (e) Do you think it would be unusual for an individual to pay a tax of less than $7600? Explain. Assume the variable is normally distributed. Round the answer to at least four decimal places. (Choose one) ▼, because the probability that an individual to pays tax less than $7600 is X 3 Español ∞o B M
Taxes: The Internal Revenue Service reports that the mean federal income tax paid in the year 2010 was $8040. Assume 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 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. The probability that the sample mean tax is less than $8000 is Part 2 of 5 X 5 (b) What is the probability that the sample mean tax is between $7600 and $8100? Round the answer to at least four decimal places. The probability that the sample mean tax is between $7600 and $8100 is X S 8 ME >
Transcribed Image Text:Taxes: The Internal Revenue Service reports that the mean federal income tax paid in the year 2010 was $8040. Assume 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 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. The probability that the sample mean tax is less than $8000 is Part 2 of 5 X 5 (b) What is the probability that the sample mean tax is between $7600 and $8100? Round the answer to at least four decimal places. The probability that the sample mean tax is between $7600 and $8100 is X S 8 ME >
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Recommended textbooks for you
Glencoe Algebra 1, Student Edition, 9780079039897…
Glencoe Algebra 1, Student Edition, 9780079039897…
Algebra
ISBN:
9780079039897
Author:
Carter
Publisher:
McGraw Hill
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Big Ideas Math A Bridge To Success Algebra 1: Stu…
Algebra
ISBN:
9781680331141
Author:
HOUGHTON MIFFLIN HARCOURT
Publisher:
Houghton Mifflin Harcourt
SEE MORE TEXTBOOKS