The following data were used in a regression study. TL TI Observation Observation 1 4 5 6. 5 7 4. 3 2 3 8 6 11 4 4 12 5 a. Develop an estimated regression equation for these data. If necessary enter negative value as negative number. = I (to 2 decimals) b. Choose the correct a plot of the residuals. A. В. T Residuals Residuals : 2- 4. 8 10 7 8 10 -1 -2 -3' -4 -4 C. D. Residuals Residuals 5 6. 9 10 4 5 6. 8 9 10 - Select your answer - v
The following data were used in a regression study. TL TI Observation Observation 1 4 5 6. 5 7 4. 3 2 3 8 6 11 4 4 12 5 a. Develop an estimated regression equation for these data. If necessary enter negative value as negative number. = I (to 2 decimals) b. Choose the correct a plot of the residuals. A. В. T Residuals Residuals : 2- 4. 8 10 7 8 10 -1 -2 -3' -4 -4 C. D. Residuals Residuals 5 6. 9 10 4 5 6. 8 9 10 - Select your answer - v
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
The following data were used in a regression study.
| Observation | xi | yi | Observation | |||||||
| 1 | 2 | 4 | 6 | 5 | 6 | |||||
| 2 | 2 | 5 | 7 | 5 | 4 | |||||
| 3 | 2 | 3 | 8 | 6 | 11 | |||||
| 4 | 3 | 4 | 9 | 6 | 12 | |||||
| 5 | 4 | 5 |
-select your answer choices-
b. (A, B, C, D)
Do the assumptions about the error term seem to be satisfied?
The assumption that the variance is (different, the same) for all values of x is questionable. The variance appears to (decrease, stay the same, increase) for larger values of x .
Transcribed Image Text:The following data were used in a regression study.
Observation
Yi
Observation
Yi
1
4
6.
6
2
2.
5
7
4
2
8
6
11
4
4
9
6.
12
4 5
a. Develop an estimated regression equation for these data. If necessary enter negative value as negative number.
+
x (to 2 decimals)
b. Choose the correct a plot of the residuals.
A.
В.
Residuals
Residuals
3-
3-
2-
2-
1
7
8
9
10
3
4
8
9
10
-1
-1
-2
-3
-4.
-4
C.
D.
Residuals
Residuals
3-
3-
2+
1
3
4
6
8
9
10
3
6
10
-1
-1
-3-
Select your answer - v
Do the assumptions about the error term seem to be satisfied?
The assumption that the variance is
Select your answer -
for all values of x is questionable. The variance appears to
Select your answer - v for larger values of x.
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