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Author Question: Which residual plot would you examine to determine whether the assumption of constant error variance ... (Read 103 times)

asmith134

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Question 1

The first-order model below was fit to a set of data.

     E(y) = β0 + β1x1 + β2x2
Explain how to determine if the constant variance assumption is satisfied.

Question 2

Which residual plot would you examine to determine whether the assumption of constant error variance is satisfied for a model with two independent variables x1 and x2?
◦ Plot the residuals against the independent variable x2.
◦ Plot the residuals against predicted values, .
◦ Plot the residuals against the independent variable x1.
◦ Plot the residuals against observed y values.


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Marked as best answer by asmith134 on Feb 14, 2020

xMRAZ

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asmith134

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Reply 2 on: Feb 14, 2020
Gracias!


Sarahjh

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Reply 3 on: Yesterday
Wow, this really help

 

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