Y,8 12 10 16 19 Develop the estimated regression equation for these data. (Round your numerical values to two decimal places.) ý- 5.2 + 2.6x O Plot the standardized residuals versus 9. 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 O 2 4 6 8 10 12 14 16 18 20 Standardized Re sidual Standardized Residual Standardized Re sidual Standardized Residual

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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question 7

1
2
4
5
8.
12
10
16
19
(a) Develop the estimated regression equation for these data. (Round your numerical values to two decimal places.)
ý =| 5.2 + 2.6x
(b) Plot the standardized residuals versus ý.
-1F
-1F
-1
-1
-2
- 2
-2
-2
4
6.
8
10 12 14 16 18 20
2
4
8
10 12 14 16 18 20
0 2
4
6
8
10 12 14 16 18 20
2
4
6
8
10 12 14 16 18 20
Do there appear to be any outliers in these data? Explain.
The value of the standardized residual for one observation
v is either greater than +2 or less than -2. Therefore, there are two outliers
(c) Compute the studentized deleted residuals for these data. (Round your answers to two decimal places.)
Studentized
Deleted Residual
1
8
12
3
10
4
16
5
19
At the 0.05 level of significance, can any of these observations be classified as an outlier? Explain. (Select all that apply.)
O Observation x, = 1 can be classified as an outlier since it has a large studentized deleted residual (greater than to oaE
or less than -to.025)·
O Observation x, = 2 can be classified as an outlier since it has a large studentized deleted residual (greater than t,
'0.025
or less than -t
0.025).
O Observation x,
= 3 can be classified as an outlier since it has a large studentized deleted residual (greater than to 025 or less than -t, 025):
O Observation x, = 4 can be classified as an outlier since it has a large studentized deleted residual (greater than t, 025 or less than -to 025).
O Observation x, = 5 can be classified as an outlier since it has a large studentized deleted residual (greater than to 025 or less than -to 025).
O None of the observations can be classified as outliers since they do not have large studentized deleted resic
han to.025 or less than -to.025).
רד C1a
Standardized Residual
3.
Standardized Residual
Standardized Residual
Standardized Residual
Transcribed Image Text:1 2 4 5 8. 12 10 16 19 (a) Develop the estimated regression equation for these data. (Round your numerical values to two decimal places.) ý =| 5.2 + 2.6x (b) Plot the standardized residuals versus ý. -1F -1F -1 -1 -2 - 2 -2 -2 4 6. 8 10 12 14 16 18 20 2 4 8 10 12 14 16 18 20 0 2 4 6 8 10 12 14 16 18 20 2 4 6 8 10 12 14 16 18 20 Do there appear to be any outliers in these data? Explain. The value of the standardized residual for one observation v is either greater than +2 or less than -2. Therefore, there are two outliers (c) Compute the studentized deleted residuals for these data. (Round your answers to two decimal places.) Studentized Deleted Residual 1 8 12 3 10 4 16 5 19 At the 0.05 level of significance, can any of these observations be classified as an outlier? Explain. (Select all that apply.) O Observation x, = 1 can be classified as an outlier since it has a large studentized deleted residual (greater than to oaE or less than -to.025)· O Observation x, = 2 can be classified as an outlier since it has a large studentized deleted residual (greater than t, '0.025 or less than -t 0.025). O Observation x, = 3 can be classified as an outlier since it has a large studentized deleted residual (greater than to 025 or less than -t, 025): O Observation x, = 4 can be classified as an outlier since it has a large studentized deleted residual (greater than t, 025 or less than -to 025). O Observation x, = 5 can be classified as an outlier since it has a large studentized deleted residual (greater than to 025 or less than -to 025). O None of the observations can be classified as outliers since they do not have large studentized deleted resic han to.025 or less than -to.025). רד C1a Standardized Residual 3. Standardized Residual Standardized Residual Standardized Residual
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