The distribution of the number of personal time off (PTO) days per year offered by different U.S. companies is skewed to the right. The mean number of days is 10.7 1. We collect data on the number of personal time off days from a random sample of 50 New England companies. Why is it okay to use these data for inference even though the population is skewed? 2. The standard deviation of the 50 companies in our sample was 9 days. Specify the sampling model (shape, center, spread) for the mean number of PTO days of such samples 3. This sample of randomly chosen New England companies produced a 90% confidence interval of (10.07, 14.33) days. Does this interval provide evidence that number of PTO days are unusually high here in New England?

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
icon
Related questions
Question

I need help reviewing this book problem. Why in this case is a skewed sample acceptable? What is the sample model's shape, center, and spread? and does the sample of new England companies provide evidence that the number of PTO days in New England are usually high?

The distribution of the number of personal time off
(PTO) days per year offered by different U.S. companies
is skewed to the right. The mean number of days is
10.7
1. We collect data on the number of personal time off
days from a random sample of 50 New England
companies. Why is it okay to use these data for
inference even though the population is skewed?
2. The standard deviation of the 50 companies in our
sample was 9 days. Specify the sampling model
(shape, center, spread) for the mean number of PTO
days of such samples
3. This sample of randomly chosen New England
companies produced a 90% confidence interval of
(10.07, 14.33) days. Does this interval provide
evidence that number of PTO days are unusually
high here in New England?
Transcribed Image Text:The distribution of the number of personal time off (PTO) days per year offered by different U.S. companies is skewed to the right. The mean number of days is 10.7 1. We collect data on the number of personal time off days from a random sample of 50 New England companies. Why is it okay to use these data for inference even though the population is skewed? 2. The standard deviation of the 50 companies in our sample was 9 days. Specify the sampling model (shape, center, spread) for the mean number of PTO days of such samples 3. This sample of randomly chosen New England companies produced a 90% confidence interval of (10.07, 14.33) days. Does this interval provide evidence that number of PTO days are unusually high here in New England?
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 2 steps with 2 images

Blurred answer
Follow-up Questions
Read through expert solutions to related follow-up questions below.
Follow-up Question

What about part two which refers to the sampling model's shape, center, and spread?

Solution
Bartleby Expert
SEE SOLUTION
Similar questions
  • SEE MORE 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