The concentration of $mathrm{NbOCl}_{3}$ in a tube-flow reactor as a function of several controllable variables is shown
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The concentration of $\mathrm{NbOCl}_{3}$ in a tube-flow reactor as a function of several controllable variables is shown in Table B.6.
a. Fit a multiple regression model relating concentration of $\mathrm{NbOCl}_{3}(y)$ to concentration of $\mathrm{COCl}_{2},\left(x_{1}\right)$ and mole fraction $\left(x_{4}\right)$.
b. Test for significance of regression.
c. Calculate $R^{2}$ and $R_{\text {Adj }}^{2}$ for this model.
d. Using $t$ tests, determine the contribution of $x_{1}$ and $x_{4}$ to the model. Are both regressors $x_{1}$ and $x_{4}$ necessary?
e. Is multicollinearity a potential concern in this model?
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Related Book For
Introduction To Linear Regression Analysis
ISBN: 9781119578727
6th Edition
Authors: Douglas C. Montgomery, Elizabeth A. Peck, G. Geoffrey Vining
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