4. [0.17/0.33 Points) DETAILS PREVIOUS ANSWERS BBUNDERSTAT12 9.1.014.5S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 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. 7 15 31 72 40 35 30 26 19 A USE SALT
4. [0.17/0.33 Points) DETAILS PREVIOUS ANSWERS BBUNDERSTAT12 9.1.014.5S. MY NOTES ASK YOUR TEACHER PRACTICE ANOTHER 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. 7 15 31 72 40 35 30 26 19 A USE SALT
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
![7:30
A webassign.net
4. [0.17/0.33 Points)
DETAILS
PREVIOUS ANSWERS
BBUNDERSTAT12 9.1.014.5.
MY NOTES
ASK YOUR TEACHER
PRACTICE ANOTHER
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.
7 15 31 72
y 40
35
5 30 26
19
A USE SALT
(a) Make a scatter diagram of the data and visualize the line you think best fits the data.
40
35
30
30
20
20
10
20 30 40 50 60
70
10
20
30
40 50 60 70
X (average number
X (average number
of employees)
of employees)
40.
35
A 25
20
10 20 30
40 50 60 70
10 20
30 40 50 60
70
X (average number
X (average number
of employees)
of employees)
(b) Would you say the correlation is low, moderate, or strong? positive or negative?
strong and positive
strong and negative
O moderate and positive
moderate and negative
low and negative
low and positive
(c) Use a calculator to verify that Ex = 128, Er - 6428, Ey = 150, Ey - 4762, and Exy = 2989. Compute r. (Round your
answer to four decimal places.)
As x increases, does the value of r imply that y should tend to increase or decrease? Explain.
O Given our value of r, y should tend to increase as x increases.
O Given our value of r, y should tend to remain constant as x increases.
O Given our value of r, we cannot draw any conclusions for the behavior of y as x increases.
Given our value of r, y should tend to decrease as x increases.
Need Help? Read Wach
5. [0.27/0.33 Points]
DETAILS
PREVIOUS ANSWERS
BBUNDERSTAT12 9.1.015.MI.S.
MY NOTES
ASK YOUR TEACHER
PRACTICE ANOTHER
Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of
tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in
miles per hour) of the cyclone.
920
X 1004 975 992 935 979 920
82 154
y 40
100
65 145
A USE SALT
(a) Make a scatter diagram of the data and visualize the line you think best fits the data.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F49bde6ea-68d9-4206-b7fa-8ad5e6affef7%2Fafc8eadd-88d3-4771-bfd3-48c18a6b4855%2F5fbq6e_processed.jpeg&w=3840&q=75)
Transcribed Image Text:7:30
A webassign.net
4. [0.17/0.33 Points)
DETAILS
PREVIOUS ANSWERS
BBUNDERSTAT12 9.1.014.5.
MY NOTES
ASK YOUR TEACHER
PRACTICE ANOTHER
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.
7 15 31 72
y 40
35
5 30 26
19
A USE SALT
(a) Make a scatter diagram of the data and visualize the line you think best fits the data.
40
35
30
30
20
20
10
20 30 40 50 60
70
10
20
30
40 50 60 70
X (average number
X (average number
of employees)
of employees)
40.
35
A 25
20
10 20 30
40 50 60 70
10 20
30 40 50 60
70
X (average number
X (average number
of employees)
of employees)
(b) Would you say the correlation is low, moderate, or strong? positive or negative?
strong and positive
strong and negative
O moderate and positive
moderate and negative
low and negative
low and positive
(c) Use a calculator to verify that Ex = 128, Er - 6428, Ey = 150, Ey - 4762, and Exy = 2989. Compute r. (Round your
answer to four decimal places.)
As x increases, does the value of r imply that y should tend to increase or decrease? Explain.
O Given our value of r, y should tend to increase as x increases.
O Given our value of r, y should tend to remain constant as x increases.
O Given our value of r, we cannot draw any conclusions for the behavior of y as x increases.
Given our value of r, y should tend to decrease as x increases.
Need Help? Read Wach
5. [0.27/0.33 Points]
DETAILS
PREVIOUS ANSWERS
BBUNDERSTAT12 9.1.015.MI.S.
MY NOTES
ASK YOUR TEACHER
PRACTICE ANOTHER
Can a low barometer reading be used to predict maximum wind speed of an approaching tropical cyclone? For a random sample of
tropical cyclones, let x be the lowest pressure (in millibars) as a cyclone approaches, and let y be the maximum wind speed (in
miles per hour) of the cyclone.
920
X 1004 975 992 935 979 920
82 154
y 40
100
65 145
A USE SALT
(a) Make a scatter diagram of the data and visualize the line you think best fits the data.
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