C10. The number of hours people work each week varies widely for many reasons. Using cheGSS18SSDS-A, you find that the mean number of hours worked last week was 41 32with a standard deviation of 15.28 hours, based on a sample size of 875.a. Assume that hours worked are approximately normally distributed in the sample.What is the probability that someone in the sample will work 60 hours or more in aweek? How many people in the sample should have worked 60 hours or more?b. What is the probability that someone will work 30 hours or fewer in a week (i.e..work part-time)? How many people does this represent in the sample?c. What number of hours worked per week corresponds to the 60th percent?

The probability that a person will work more than 60 hours is given by P(X>60) =P(X-uσ>60-uσ)…

Answered: A, you find d deviation - hours wor…

Math

Statistics

A, you find d deviation - hours wor probability many peop. orobability ne)? How m

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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Concept explainers

Estimation

A new framework of data analysis where the new statistical methods are used for interpreting the results and analyzing the data is known as estimation in statistics.

Question

C10. The number of hours people work each week varies widely for many reasons. Using che
GSS18SSDS-A, you find that the mean number of hours worked last week was 41 32
with a standard deviation of 15.28 hours, based on a sample size of 875.
a. Assume that hours worked are approximately normally distributed in the sample.
What is the probability that someone in the sample will work 60 hours or more in a
week? How many people in the sample should have worked 60 hours or more?
b. What is the probability that someone will work 30 hours or fewer in a week (i.e..
work part-time)? How many people does this represent in the sample?
c. What number of hours worked per week corresponds to the 60th percent?

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