An article reports an experiment to predict various properties of titanium welds. Among other properties, the elongation (in %) was measured, along with the oxygen content and nitrogen content (both in percent). The following MINITAB output presents results of fitting the model Elongation = β0 + β1Oxygen + β2Nitrogen + β3Oxygen·Nitrogen a) Find the P-value for testing H0:β2≤-1000H0:β2≤-1000 . Can we conclude that β2 > -1000?
An article reports an experiment to predict various properties of titanium welds. Among other properties, the elongation (in %) was measured, along with the oxygen content and nitrogen content (both in percent). The following MINITAB output presents results of fitting the model Elongation = β0 + β1Oxygen + β2Nitrogen + β3Oxygen·Nitrogen a) Find the P-value for testing H0:β2≤-1000H0:β2≤-1000 . Can we conclude that β2 > -1000?
MATLAB: An Introduction with Applications
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ISBN:9781119256830
Author:Amos Gilat
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An article reports an experiment to predict various properties of titanium welds. Among other properties, the elongation (in %) was measured, along with the oxygen content and nitrogen content (both in percent). The following MINITAB output presents results of fitting the model
Elongation = β0 + β1Oxygen + β2Nitrogen + β3Oxygen·Nitrogen
a) Find the P-value for testing H0:β2≤-1000H0:β2≤-1000 . Can we conclude that β2 > -1000?

Transcribed Image Text:The regression equation is
Elongation = 46.80 - 130.11 Oxygen
807.1 Nitrogen + 3580.5 Oxy Nit
Coef
46.802
- 130.11
- 807.10
3580.5
SE Coef
3.702
20.467
158.03
958.05
Predictor
12.64
0.000
0.000
0.000
0.001
Constant
Oxygen
Nitrogen
Oxy Nit
S = 2.809
- 6.36
- 5.107
3.737
R-Sq
74.5%
R-Sq(adj) = 72.3%
Analysis of Variance
DF
Source
Regression
Residual Error
Total
SS
805.43
276.11
1081.54
MS
268.48
7.89
34.03
0.000
35
38
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