A statistical program is recommended. An article gave the data, shown in the table below, on dimensions of 27 representative food products Product Material 1 2 3 S 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 glass glass glass glass plastic glass glass 8.5 10.4 8.0 8.7 10.2 plastic 10.5 3.4 6.9 plastic plastic tin plastic glass glass glass glass glass glass glass Height glass 7.7 glass cardboard 8.7 glass plastic cardboard 17.1 tin tin 10.9 9.7 10.1 13.0 13.0 11.0 16.5 9.7 17.8 14,0 13.6 27.9 19.5 13.8 Maximum Minimum Width Width 2.50 2.90 2.15 2.90 3.20 2.00 1.60 5.90 5.80 2.90 2.45 2.60 2.60 2.70 3.10 5.10 10.20 3.50 2.70 3.00 2.70 2.50 2.40 4.40 7.50 4.25 1.80 2.70 2.00 2.60 3.15 1.80 1.50 3.80 5.00 4.75 2.80 2.10 2.20 2.60 2.60 2.90 5.10 10.20 3.50 1.20 1.70 1.75 1.70 1.20 1.20 7.50 4.25 Elongation Volume 1.50 1.07 1.98 1.79 1.25 2.17 3.19 1.09 0.29 0.59 1.88 1.98 1.94 2.50 2.41 1.77 0.85 0.84 2.36 3.06 1.62 3.30 2.80 2.83 3.17 1.30 1.62 123 (b) Why should we consider adjusted R² instead of R² when evaluating this model? We should consider the adjusted We should consider the adjusted We should consider the adjusted We should consider the adjusted instead of instead of instead of instead of 133 178 283 327 86 116 325 574 335 171 240 235 360 307 639 1255 308 319 300 241 205 1206 2332 729 (a) Fit a multiple regression model for predicting the volume (in ml) of a package based on its minimum width, maximum width, and elongation score. (Round your numerical values to two decimal places. Use x, for minimum width, x, for the maximum width and x, for the elongation score.) 9- because it does not take into account the number of predictors used in the model. In this case the adjusted is noticeably greater than ². because it does not take into account the number of predictors used in the model. In this case the adjusted ² is noticeably less than ² because it takes into account the number of predictors used in the model. In this case the adjusted is noticeably less than ². because it takes into account the number of predictors used in the model. In this case the adjusted is noticeably greater than ²

MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
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(c) Carry out a model utility F test at a 0.05 significance level.
State the null and alternative hypotheses.
O Ho: P₂ = P₂ - Py = 0
HP
and are all not 0
OHP₂ and A, are all not 0
H₂: P₂ P₂P₂-0
ⒸH₂i P₂ P₂ P₂ -0
H: at least one of P₁, P₂ or Pg is not o
OH.: at least one of A₂, B₂ or Ay is not o
H₂: P₂P₂P₂-0
Calculate the test statistic. (Round your answer to two decimal places.)
F=
Use technology to calculate the P-value. (Round your answer to four decimal places.)
P-value=
What can you conclude?
O Reject H. We have convincing evidence that the multiple regression model is useful and can conclude that at least one of ₁, ₂ or is not 0.
are all not 0.
O Fail to reject H. We do not have convincing evidence that the multiple regression model is useful and cannot conclude that ₁.₂ and
O Fail to reject H. We do not have convincing evidence that the multiple regression model is useful and cannot conclude that at least one of P₂ P₂ or By is not 0.
O Reject H. We have convincing evidence that the multiple regression model is useful and can conclude that ₁, ₂ and are all not 0.
Transcribed Image Text:(c) Carry out a model utility F test at a 0.05 significance level. State the null and alternative hypotheses. O Ho: P₂ = P₂ - Py = 0 HP and are all not 0 OHP₂ and A, are all not 0 H₂: P₂ P₂P₂-0 ⒸH₂i P₂ P₂ P₂ -0 H: at least one of P₁, P₂ or Pg is not o OH.: at least one of A₂, B₂ or Ay is not o H₂: P₂P₂P₂-0 Calculate the test statistic. (Round your answer to two decimal places.) F= Use technology to calculate the P-value. (Round your answer to four decimal places.) P-value= What can you conclude? O Reject H. We have convincing evidence that the multiple regression model is useful and can conclude that at least one of ₁, ₂ or is not 0. are all not 0. O Fail to reject H. We do not have convincing evidence that the multiple regression model is useful and cannot conclude that ₁.₂ and O Fail to reject H. We do not have convincing evidence that the multiple regression model is useful and cannot conclude that at least one of P₂ P₂ or By is not 0. O Reject H. We have convincing evidence that the multiple regression model is useful and can conclude that ₁, ₂ and are all not 0.
A statistical program is recommended.
An article gave the data, shown in the table below, on dimensions of 27 representative food products.
Product
9-
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
Material Height
glass
glass
glass
glass
plastic
glass
glass
plastic
plastic
plastic
tin
plastic
glass
glass
glass
glass
glass
glass
glass
7.7
tin
6.2
tin
8.5
10.4
8.0
8.7
10.2
glass
glass
glass
cardboard 8.7
cardboard
10.5
3.4
6.9
10.9
9.7
10.1
13.0
13.0
11.0
17.1
16.5
16.5
9.7
17.8
14.0
plastic 27.9
13.6
19.5
13.8
Maximum Minimum
Width
Width
2.50
2.90
2.15
2.90
3.20
2.00
1.60
4.80
5.90
5.80
2.90
2.45
2.60
2.60
2.70
3.10
5.10
10.20
3.50
2.70
3.00
2.70
2.50
2.40
4.40
7.50
4.25
1.80
2.70
2.00
2.60
3.15
1.80
1.50
3.80
5.00
4.75
2.80
2.10
2.20
2.60
2.60
2.90
5.10
10.20
3.50
1.20
1.70
1.75
1.70
1.20
1.20
7.50
4.25
Elongation Volume
1.50
1.07
1.98
1.79
1.25
2.17
3.19
1.09
0.29
0.59
1.88
1.98
1.94
2.50
2.41
1.77
0.85
0.84
2.36
3.06
1.62
3.30
2.80
2.83
3.17
1.30
1.62
123
(b) Why should we consider adjusted R2 instead of R2 when evaluating this model?
We should consider the adjusted
We should consider the adjusted
We should consider the adjusted
We should consider the adjusted
133
178
283
327
86
116
521
325
574
335
171
240
235
360
307
639
1255
646
308
319
300
241
205
1206
2332
(a) Fit a multiple regression model for predicting the volume (in ml) of a package based on its minimum width, maximum width, and elongation score. (Round your numerical values to two decimal places. Use x, for minimum width, x, for the maximum width and x, for the elongation score.)
729
instead of 2 because it does not take into account the number of predictors used in the model. In this case the adjusted is noticeably greater than ².
instead of 2 because it does not take into account the number of predictors used in the model. In this case the adjusted is noticeably less than ².
instead of
because it takes into account the number of predictors used in the model. In this case the adjusted 2 is noticeably less than ².
instead of
because it takes into account the number of predictors used in the model. In this case the adjusted is noticeably greater than ².
Transcribed Image Text:A statistical program is recommended. An article gave the data, shown in the table below, on dimensions of 27 representative food products. Product 9- 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 Material Height glass glass glass glass plastic glass glass plastic plastic plastic tin plastic glass glass glass glass glass glass glass 7.7 tin 6.2 tin 8.5 10.4 8.0 8.7 10.2 glass glass glass cardboard 8.7 cardboard 10.5 3.4 6.9 10.9 9.7 10.1 13.0 13.0 11.0 17.1 16.5 16.5 9.7 17.8 14.0 plastic 27.9 13.6 19.5 13.8 Maximum Minimum Width Width 2.50 2.90 2.15 2.90 3.20 2.00 1.60 4.80 5.90 5.80 2.90 2.45 2.60 2.60 2.70 3.10 5.10 10.20 3.50 2.70 3.00 2.70 2.50 2.40 4.40 7.50 4.25 1.80 2.70 2.00 2.60 3.15 1.80 1.50 3.80 5.00 4.75 2.80 2.10 2.20 2.60 2.60 2.90 5.10 10.20 3.50 1.20 1.70 1.75 1.70 1.20 1.20 7.50 4.25 Elongation Volume 1.50 1.07 1.98 1.79 1.25 2.17 3.19 1.09 0.29 0.59 1.88 1.98 1.94 2.50 2.41 1.77 0.85 0.84 2.36 3.06 1.62 3.30 2.80 2.83 3.17 1.30 1.62 123 (b) Why should we consider adjusted R2 instead of R2 when evaluating this model? We should consider the adjusted We should consider the adjusted We should consider the adjusted We should consider the adjusted 133 178 283 327 86 116 521 325 574 335 171 240 235 360 307 639 1255 646 308 319 300 241 205 1206 2332 (a) Fit a multiple regression model for predicting the volume (in ml) of a package based on its minimum width, maximum width, and elongation score. (Round your numerical values to two decimal places. Use x, for minimum width, x, for the maximum width and x, for the elongation score.) 729 instead of 2 because it does not take into account the number of predictors used in the model. In this case the adjusted is noticeably greater than ². instead of 2 because it does not take into account the number of predictors used in the model. In this case the adjusted is noticeably less than ². instead of because it takes into account the number of predictors used in the model. In this case the adjusted 2 is noticeably less than ². instead of because it takes into account the number of predictors used in the model. In this case the adjusted is noticeably greater than ².
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