Please solve by hand! A manufacturer of wood stoves collected data on y = particulate matter concentration and x1 = flue tem- perature for three different air intake settings (low, me- dium, and high). a. Write a model equation that includes indicator vari- ables to incorporate intake setting, and interpret each of the b coefficients. b. What additional predictors would be needed to in- corporate interaction between temperature and in- take setting?

MATLAB: An Introduction with Applications
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Author:Amos Gilat
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Please solve by hand!

A manufacturer of wood stoves collected data on
y = particulate matter concentration and x1 = flue tem-
perature for three different air intake settings (low, me-
dium, and high).
a. Write a model equation that includes indicator vari-
ables to incorporate intake setting, and interpret
each of the b coefficients.

b. What additional predictors would be needed to in-
corporate interaction between temperature and in-
take setting? 

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