Answered: An article reports an experiment to…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

See similar textbooks

Related questions

Question

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 a 98% confidence interval for the coefficient of the interaction term Oxygen•Nitrogen. Round the answers to two decimal places.

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

Expert Solution

Trending now

This is a popular solution!

Step by step

Solved in 2 steps with 1 images

SEE SOLUTION Check out a sample Q&A here

Knowledge Booster

$Anova and Design of Experiments$

Learn more about

Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, statistics and related others by exploring similar questions and additional content below.

Similar questions