The following data were used in a regression study. TIL T Observation Yi Observation Yi 1. 3 6 5 2 2 6 3 1 8 6 6 4 3 3 6 -1 5 4 a. Develop an estimated regression equation for these data. If necessary enter negative value as negative number. = 2.22 + -0.03 x (to 2 decimals) b. Choose the correct a plot of the residuals. А. В. Residuals Residuals 3- 2- 1 3 4 8 10 3 4 5 6 8 10 -2 -3 С. D. Residuals Residuals 4. 5 8 10 5 7 10 -4 Select your answer - 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 - : for larger values of x.

MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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Chapter1: Starting With Matlab
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The assumption that the variance is (the same or different) for all values of is questionable. The variance appears to (decrease, stay the same, increase) for larger values of .

The following data were used in a regression study.
TI
Observation
Yi
Observation
Yi
1
1
6.
2
7
3
2
8
4
9.
6.
-1
4
a. Develop an estimated regression equation for these data. If necessary enter negative value as negative number.
2.22 +
-0.03 x (to 2 decimals)
b. Choose the correct a plot of the residuals.
A.
Residuals
Residuals
3-
3-
2-
2-
1
2
6.
7
8
9
10
6.
7
8
10
-1
-1
-3
-3
С.
D.
Residuals
Residuals
3
3
-2
2
3
7
8
10
3
6
7
10
-1
-3
-3
- Select your answer -
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 -
+ for larger values of x.
0o
2.
2.
B.
-0o
-0o
3.
Transcribed Image Text:The following data were used in a regression study. TI Observation Yi Observation Yi 1 1 6. 2 7 3 2 8 4 9. 6. -1 4 a. Develop an estimated regression equation for these data. If necessary enter negative value as negative number. 2.22 + -0.03 x (to 2 decimals) b. Choose the correct a plot of the residuals. A. Residuals Residuals 3- 3- 2- 2- 1 2 6. 7 8 9 10 6. 7 8 10 -1 -1 -3 -3 С. D. Residuals Residuals 3 3 -2 2 3 7 8 10 3 6 7 10 -1 -3 -3 - Select your answer - 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 - + for larger values of x. 0o 2. 2. B. -0o -0o 3.
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