(b) Would you say the correlation is low, moderate, or strong? positive or negative? O moderate and positive O low and negative O low and positive O strong and negative O moderate and negative O strong and positive
(b) Would you say the correlation is low, moderate, or strong? positive or negative? O moderate and positive O low and negative O low and positive O strong and negative O moderate and negative O strong and positive
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
Transcribed Image Text:Let x be the average number of employees in a group health insurance plan, and let y be the average administrative cost as a percentage of claims.
3.
7
15
34
73
y
40
35
30
27
16
A USE SALT
(a) Make a scatter diagram of the data and visualize the line you think best fits the data.
40
40
40
35
35
35
30
30
30
25
25
25
20
20
20
10
20
30
40
50
60 70
10
20
30
40
50
60
70
10
20
30
40
50
60
70
x (average number
X (average number
X(average number
of employees)
of employees)
of employees)
40
35
30
25
20
10
20
30
40
50
60
70
X (average number
of employees)
(b) Would you say the correlation is low, moderate, or strong? positive or negative?
moderate and positive
low and negative
O low and positive
O strong and negative
moderate and negative
O strong and positive
y (average cost
y (average cost
as percentage)
as percentage)
y (average cost
as percentage)
y (average cost
as percentage)
Transcribed Image Text:7713184
10
20
30
40
50
60
70
X(average number
of employees)
(b) Would you say the correlation is low, moderate, or strong? positive or negative?
O moderate and positive
O low and negative
O low and positive
O strong and negative
O moderate and negative
O strong and positive
(c)
Use a calculator to verify that Ex = 132, Ex2
6768, Ey = 148,
Ey?
4710, and Exy = 2901. Compute r. (Round your answer to four decimal places.)
%3D
%3D
%3D
r =
As x increases, does the value of r imply that y should tend to increase or decrease? Explain.
O Given our value of r, we cannot draw any conclusions for the behavior of y as x increases.
O Given our value of r, y should tend to increase as x increases.
Given our value of r, y should tend to decrease as x increases.
Given our value of r, y should tend to remain constant as x increases.
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 4 steps with 4 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