A particular article presented data ony = tar content (grains/100 ft3) of a gas stream as a function of x1 = rotor speed (rev/min) and x2 = gas inlet temperature (°F). The following regression model usingx 1,x 2, x3 = x2 2 and x4 = x1x2 was suggested. (mean y value) = 86.5 − 0.124x1 + 5.07x2 − 0.0708x3 + 0.001x4 a.) According to this model, what is the mean y value (in grains/100 ft3) ifx 1 = 3,200 andx 2 = 55. grains/100 ft3

A particular article presented data on y = tar content (grains/100 ft 3 ) of a gas stream as a function of x 1 = rotor speed (rev/min) and x 2 = gas inlet temperature (°F). The following regression...

A particular article presented data ony = tar content (grains/100 ft³) of a gas stream as a function of x₁
= rotor speed (rev/min) and x₂
= gas inlet temperature (°F). The following regression model usingx
₁,x
₂, x₃ = x₂
²and x₄ = x₁x₂

was suggested.

(mean y value) = 86.5 − 0.124x₁ + 5.07x₂ − 0.0708x₃ + 0.001x₄

a.) According to this model, what is the mean
y value (in grains/100 ft³) ifx
₁ = 3,200 andx
₂ = 55.

grains/100 ft³

Jun 08, 2022

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A particular article presented data on y = tar content (grains/100 ft 3 ) of a gas stream as a function of x 1 = rotor speed (rev/min) and x 2 = gas inlet temperature (°F). The following regression...

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