Cost-to-charge ratio (the percentage of the amount billed that represents the actual cost) for inpatient and outpatient services at 11 Oregon hospitals is shown in the following table. A scatterplot of the data is also shown. Cost-to-Charge Ratio Hospital Outpatient Care Inpatient Care 1 62 80 2 66 76 3 63 75 4 51 62 5 75 100 6 65 88 7 56 64 8 45 50 9 48 54 10 71 83 11 54 100 The least-squares regression line with y = inpatient cost-to-charge ratio and x = outpatient cost-to-charge ratio is = -1.1 + 1.29 x. (a) Is the observation for Hospital 11 an influential observation? Yes or No (b) Is the observation for Hospital 11 an outlier? Yes or No (c) Is the observation for Hospital 5 an influential observation? Yes or No (d) Is the observation for Hospital 5 an outlier?
Cost-to-charge ratio (the percentage of the amount billed that represents the actual cost) for inpatient and outpatient services at 11 Oregon hospitals is shown in the following table. A scatterplot of the data is also shown. Cost-to-Charge Ratio Hospital Outpatient Care Inpatient Care 1 62 80 2 66 76 3 63 75 4 51 62 5 75 100 6 65 88 7 56 64 8 45 50 9 48 54 10 71 83 11 54 100 The least-squares regression line with y = inpatient cost-to-charge ratio and x = outpatient cost-to-charge ratio is = -1.1 + 1.29 x. (a) Is the observation for Hospital 11 an influential observation? Yes or No (b) Is the observation for Hospital 11 an outlier? Yes or No (c) Is the observation for Hospital 5 an influential observation? Yes or No (d) Is the observation for Hospital 5 an outlier?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Use this dataset for your analysis software.
Cost-to-charge ratio (the percentage of the amount billed that represents the actual cost) for inpatient and outpatient services at 11 Oregon hospitals is shown in the following table. A
| Cost-to-Charge Ratio | ||
| Hospital | Outpatient Care |
Inpatient Care |
| 1 | 62 | 80 |
| 2 | 66 | 76 |
| 3 | 63 | 75 |
| 4 | 51 | 62 |
| 5 | 75 | 100 |
| 6 | 65 | 88 |
| 7 | 56 | 64 |
| 8 | 45 | 50 |
| 9 | 48 | 54 |
| 10 | 71 | 83 |
| 11 | 54 | 100 |
The least-squares regression line with y = inpatient cost-to-charge ratio and x = outpatient cost-to-charge ratio is = -1.1 + 1.29 x.
(a) Is the observation for Hospital 11 an influential observation?
(b) Is the observation for Hospital 11 an outlier?
(c) Is the observation for Hospital 5 an influential observation?
(d) Is the observation for Hospital 5 an outlier?
Yes or No
(b) Is the observation for Hospital 11 an outlier?
Yes or No
(c) Is the observation for Hospital 5 an influential observation?
Yes or No
(d) Is the observation for Hospital 5 an outlier?
Yes or No
Transcribed Image Text:Cost-to-Charge Ratio
Outpatient Inpatient
Care
Hospital Care
1
62
80
2
66
76
3
63
75
4
51
62
75
100
6
65
88
7
56
64
8
45
50
9
48
54
10
71
83
11
54
100
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