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 isPart 2 of 5Part 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 isPart 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 $XX3ŚPart 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 isS(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 theanswer to at least four decimal places.(Choose one) ▼, because the probability that an individual to pays tax less than $7600 isX3Español∞oBM 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 isPart 2 of 5X5(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 isXS8 ME >

Since you have posted a question with multiple sub-parts, we will solve first three subparts for…

Answered: Taxes: The Internal Revenue Service…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Similar questions

You may need to use the appropriate appendix table to answer this question. According to Money magazine, Maryland had the highest median annual household income of any state in 2018 at $75,847.t Assume that annual household income in Maryland follows a normal distribution with a median of $75,847 and standard deviation of $33,800. (a) What is the probability that a household in Maryland has an annual income of $110,000 or more? (Round your answer to four decimal places.) (b) What is the probability that a household in Maryland has an annual income of $50,000 or less? (Round your answer to four decimal places.) (c) What is the probability that a household in Maryland has an annual income between $60,000 and $70,000? (Round your answer to four decimal places.) (d) What is the annual income (in $) of a household in the eighty-sixth percentile of annual household income in Maryland? (Round your answer to the nearest cent.) $ %24
High-rent district: The mean monthly rent for a one-bedroom apartment without a doorman in Manhattan is $2681. Assume the standard deviation is $510. A real estate firm samples 112 apartments. Use the TI-84 Plus calculator. Part 1 of 5 (a) What is the probability that the sample mean rent is greater than $2751? Round the answer to at least four decimal places. The probability that the sample mean rent is greater than $2751 is Part 2 of 5 (b) What is the probability that the sample mean rent is between $2500 and $2650? Round the answer to at least four decimal places. The probability that the sample mean rent is between $2500 and $2650 is.
The average chef at a restaurant earns $17 an hour with a deviation of $1.75. What are the chances that someone is earning more than $20 an hour?
Answer these math question
You may need to use the appropriate appendix table to answer this question. According to Money magazine, Maryland had the highest median annual household income of any state in 2018 at $75,847.t Assume that annual household income in Marylan distribution with a median of $75,847 and standard deviation of $33,800. (a) What is the probability that a household in Maryland has an annual income of $110,000 or more? (Round your answer to four decimal places.) (b) What is the probability that a household in Maryland has an annual income of $50,000 or less? (Round your answer to four decimal places.) (c) What is the probability that a household in Maryland has an annual income between $60,000 and $70,000? (Round your answer to four decimal places.) (d) What is the annual income (in $) of a household in the eighty-sixth percentile of annual household income in Maryland? (Round your answer to the nearest cent.) $
Salaries for teachers in a particular elementary school district are normally distributed with a mean of $45,000 and a standard deviation of $6,200. We randomly survey ten teachers from that district. Find the probability that the teachers earn a total of over $400,000. (Round your answer to four decimal places.)
The average salary for a civil engineering major is $75,000 with a standard deviation of $10,000. A university wants to determine how well their students in their civil engineering program get paid after graduating. They ask one class of 80 students in a course to give their salaries after graduating. What is the probability the average salary of the 80 students is between $73,000 and $77,000? 0.16 O 0.93 O 0.68 O 0.78
The owner of a convenience store has determined that their daily revenue has mean $7,200 and standard deviation $1,200. A simple random sample of the next 30 days is taken and daily revenue is recorded. What is the probability that the mean daily revenue for the next 30 days will be between $7,000 and $7,500? Round answer to 4 decimal places
Salaries for teachers in a particular elementary school district are normally distributed with a mean of $41,000 and a standard deviation of $6,200. We randomly survey ten teachers from that district. Find the probability that the teachers earn a total of over $400,000. (Round your answer to four decimal places.) Find the 70th percentile for an individual teacher's salary. (Round your answer to the nearest whole number.)
A report announced that the median sales price of new houses sold one year was $231,000, and the mean sales price was $273,700. Assume that the standard deviation of the prices is $80,000. If you select a random sample of n=100, what is the probability that the sample mean will be betwee $275,000 and $285,000? round to four decimal places
Question 4. At a busy shopping mall on Saturdays, the length of time it takes to find a parking space at 11 A.M. follows a normal distribution with a mean of five minutes and a standard deviation of two minutes. Find the probability that it takes seven minutes or more to find a parking space. What is the probability of finding a parking spot within one minute? How many minutes do the luckiest 25% of shoppers need to find a parking spot? How many minutes do the unluckiest 25% need to find a parking spot?
Answer the three following questions a, b, and c. 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.

SEE MORE QUESTIONS

Recommended textbooks for you

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

MATLAB: An Introduction with Applications

Statistics

ISBN:

9781119256830

Author:

Amos Gilat

Publisher:

John Wiley & Sons Inc

Probability and Statistics for Engineering and th…

Statistics

ISBN:

9781305251809

Author:

Jay L. Devore

Publisher:

Cengage Learning

Statistics for The Behavioral Sciences (MindTap C…

Statistics

ISBN:

9781305504912

Author:

Frederick J Gravetter, Larry B. Wallnau

Publisher:

Cengage Learning

Elementary Statistics: Picturing the World (7th E…

Statistics

ISBN:

9780134683416

Author:

Ron Larson, Betsy Farber

Publisher:

PEARSON

The Basic Practice of Statistics

Statistics

ISBN:

9781319042578

Author:

David S. Moore, William I. Notz, Michael A. Fligner

Publisher:

W. H. Freeman

Introduction to the Practice of Statistics

Statistics

ISBN:

9781319013387

Author:

David S. Moore, George P. McCabe, Bruce A. Craig

Publisher:

W. H. Freeman

SEE MORE TEXTBOOKS