Homework Help is Here – Start Your Trial Now!
Math
Statistics
Among all the income tax forms filed in a certain year, the mean tax paid was $2000 and the standard deviation was $500. In addition, for 10% of all the tax forms, the tax paid was greater than $3000 each. A random sample of 625 tax forms is drawn.   Questions Question 5, Part a:  What is the probability that the average tax paid on the sampled forms is greater than $1985?   Question 5, Part b: What is the probability that in more than 60 of the sampled forms, the tax paid is greater than $3000 each?

Among all the income tax forms filed in a certain year, the mean tax paid was $2000 and the standard deviation was $500. In addition, for 10% of all the tax forms, the tax paid was greater than $3000 each. A random sample of 625 tax forms is drawn.   Questions Question 5, Part a:  What is the probability that the average tax paid on the sampled forms is greater than $1985?   Question 5, Part b: What is the probability that in more than 60 of the sampled forms, the tax paid is greater than $3000 each?

MATLAB: An Introduction with Applications
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
icon
Related questions
Question

Among all the income tax forms filed in a certain year, the mean tax paid was $2000 and the standard deviation was $500. In addition, for 10% of all the tax forms, the tax paid was greater than $3000 each. A random sample of 625 tax forms is drawn.

 

Questions
Question 5, Part a: 
What is the probability that the average tax paid on the sampled forms is greater than $1985?

 

Question 5, Part b:
What is the probability that in more than 60 of the sampled forms, the tax paid is greater than $3000 each?

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps with 3 images

SEE SOLUTIONCheck out a sample Q&A here
Blurred answer
Similar questions
Recommended textbooks for you
MATLAB: An Introduction with Applications
MATLAB: An Introduction with Applications
Statistics
ISBN:
9781119256830
Author:
Amos Gilat
Publisher:
John Wiley & Sons Inc
Probability and Statistics for Engineering and th…
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 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…
Elementary Statistics: Picturing the World (7th E…
Statistics
ISBN:
9780134683416
Author:
Ron Larson, Betsy Farber
Publisher:
PEARSON
The Basic Practice of Statistics
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
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