Question
Let x be the average number of employees in a group health insurance plan, and let...
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.
| x | 3 | 7 | 15 | 34 | 74 |
| y | 40 | 35 | 30 | 28 |
16 |
Use a calculator to verify that Σx = 133, Σx2 = 6915, Σy = 149, Σy2 = 4765, and Σxy = 2951. Compute r. (Round your answer to three decimal places.)
Homework Answers
Answer #1
therefore, r = -0.966 (up to 3
decimal places)
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Let x be the average number of employees in a group health insurance plan, and let...
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health insurance plan, and let y be the average
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15
30
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Submission Data
(b) Would you say the correlation is low, moderate, or strong?
positive or negative?
strong and negativelow and
positive low and negativestrong...
Let x be the average number of employees in a group health insurance plan, and let...
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.
x
3
7
15
37
72
y
40
35
30
28
17
(a) Make a scatter diagram of the data and visualize the line
you think best fits the data.
(b) Would you say the correlation is low, moderate, or strong?
positive or negative?
low and positivemoderate and
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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.
x
3
7
15
40
70
y
40
35
30
28
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(a) Make a scatter diagram of the data and visualize the line
you think best fits the data.
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Let x be the average number of employees in a group health insurance plan, and let...
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7
15
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(a) Make a scatter diagram of the data and visualize the line
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Vertical Parabola
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No Solution
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25
30
35
40
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