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Author Question: It is desired to build a regression model to predict y = the sales price of a single family home, ... (Read 100 times)

evelyn o bentley

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on: Feb 14, 2020

Question 1

Consider the model



where x1 is a quantitative variable and x2 and x3 are dummy variables describing a qualitative variable at three levels using the coding scheme


The resulting least squares prediction equation is


 What is the equation of the response curve for E(y) when x2 = 0 and x3 = 0?
◦ = 8.8 - 1.1x1 + 3.2x12
◦ = 8.8 - 1.3x1 + 3.2x12
◦ = 8.8 - 1.6x2 - 4.4x3
◦ = 8.8 - .22x1 + 3.15x12

Question 2

It is desired to build a regression model to predict y = the sales price of a single family home, based on the x1 = size of the house and x2 = the neighborhood the home is located in. The goal is to compare the prices of homes that are located in two different neighborhoods. A complete 2nd-order model is proposed. Which regression model proposes the complete 2nd-order model?
◦ E(y) = β0 + β1x1 + β2x12 + β3x2 + β4x1x2 + β3x12x2
◦ E(y) = β0 + β1x1 + β2x2 + β3x1x2
◦ E(y) = β0 + β1x1 + β2x12 + β3x2 + β4x22
◦ E(y) = β0 + β1x1 + β2x2
Statistics ¦ McClave, Sincich, Tamarack ¦ 12th Edition
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Marked as best answer by evelyn o bentley on Feb 14, 2020

Liddy

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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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evelyn o bentley

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Reply 2 on: Feb 14, 2020
:D TYSM

emsimon14

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Reply 3 on: Yesterday
Gracias!

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