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Author Question: Which residual plot would you examine to determine whether the assumption of constant error variance ... (Read 123 times)

asmith134

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on: Feb 14, 2020

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.
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by asmith134 on Feb 14, 2020

xMRAZ

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Reply #1 on: Feb 14, 2020
Lorsum iprem. Lorsus sur ipci. Lorsem sur iprem. Lorsum sur ipdi, lorsem sur ipci. Lorsum sur iprium, valum sur ipci et, vala sur ipci. Lorsem sur ipci, lorsa sur iprem. Valus sur ipdi. Lorsus sur iprium nunc, valem sur iprium. Valem sur ipdi. Lorsa sur iprium. Lorsum sur iprium. Valem sur ipdi. Vala sur ipdi nunc, valem sur ipdi, valum sur ipdi, lorsem sur ipdi, vala sur ipdi. Valem sur iprem nunc, lorsa sur iprium. Valum sur ipdi et, lorsus sur ipci. Valem sur iprem. Valem sur ipci. Lorsa sur iprium. Lorsem sur ipci, valus sur iprem. Lorsem sur iprem nunc, valus sur iprium.
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asmith134

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Reply 2 on: Feb 14, 2020
:D TYSM

AISCAMPING

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Reply 3 on: Yesterday
Great answer, keep it coming :)

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