d. Find P(x > 65).
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
Related questions
Question
Can you do part d of the circled question?
Transcribed Image Text:Applying the Concepts-Basic
6.34 Corporate sustainability of CPA firms. Refer to the
Business and Society (Mar. 2011) study on the sustainabil-
ity behaviors of CPA corporations, Exercise 1.26 (p. 22).
Recall that corporate sustainability refers to business
practices designed around social and environmental con-
siderations. The level of support senior managers have for
corporate sustainability was measured quantitatively on a
scale ranging from 0 to 160 points, where higher point val-
ues indicate a higher level of support for sustainability. The
study provided the following information on the distribu-
tion of levels of support for sustainability: u = 68,0 = 27.
Now consider a random sample of 30 senior managers and
let i represent the sample mean level of support.
a. Give the value of uz, the mean of the sampling distribu-
tion of x, and interpret the result.
b. Give the value of ox, the standard deviation of the sam-
pling distribution of x, and interpret the result.
c. What does the Central Limit Theorem say about the
shape of the sampling distribution of x?
d. Find P(x > 65).
m
е
6.35 Voltage sags and swells. Refer to the Electrical Engineering
(Vol. 95, 2013) study of the power quality (sags and swells)
of a transformer, Exercise 2.127 (p. 82). For transformers
built for heavy industry, the distribution of the number of
sags per week has a mean of 353 with a standard deviation
of 30. Of interest is x, the sample mean number of sags per
week for a random sample of 45 transformers.
a. Find E(x) and interpret its value.
Expert Solution
Step 1
Introduction :-
We want to find probability that sample mean is greater than 65.
Step by step
Solved in 2 steps with 3 images
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