A national homebuilder builds single-family homes and condominium-style townhouses. The accompanying dataset provides information on the selling price, lot cost, and type of home for closings during one month. Complete parts a through c. A Click the icon to view the house sales data. - X House sales data a. Develop a multiple regression model for sales price as a function of lot cost and type of home without any interaction term. Create a dummy variable named "Townhouse", where it is equal to 1 when Type = "Townhouse" and 0 otherwise. Determine the coefficients of the regression equation. Туре Townhouse Single Family $138,530 Townhouse Single Family Townhouse Townhouse Sales Price = 108726 +( 3.68 ) • Lot Cost + ( – 75063 ) • Townhouse (Round the constant and coefficient of Townhouse to the nearest integer as needed. Round all other values to two decimal places as needed.) Sales Price $114,740 Lot Cost $21,700 $26,550 $149,905 $172,000 $183,916 $189,390 b. Determine if an interaction exists between lot cost and type of home and find the best model. Use a = 0.1 as the level of significance. First determine whether an interaction exists. Select the correct choice below and, if necessary. fillin te answer box to complete your choice. © A. An interaction exists because the p-value of the variable Lot Cost · Townhouse is . which is less than a. $25,550 $26,200 $46,025 $28,000 $36,000 $46,025 $46,025 $40.299 $37,500 Single Family $191,120 Townhouse Townhouse Single Family Single Family $216,205 Townhouse Single Family $257,000 Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family Single Family $494,820 (Type an integer or a decimal rounded to three decimal places as needed.) O B. An interaction exists because the p-value of the variable Townhouse i $198,898 $205,076 $207,821 s. which is greater than a. (Type an integer or a decimal rounded to three decimal places as needed.) $252,800 $74,400 $44,198 $44,344 $42,099 $46,000 $45,650 $58,000 $60,000 $46,850 OC. An interaction exists because the p-value of the variable Lot Cost is which is greater than a. (Type an integer or a decimal rounded to three decimal places as needed.) O D. No interaction exists because the p-value is less than a for all of the independent variables $270,000 $270,500 $273,105 $279,720 $296,990 $303,500 $309,487 $314,898 $321,602 $326,412 $339,374 $339,380 $340,065 $356,117 $361,949 $434,426 $41,768 $83,300 $63,523 $71,449 $50,150 $55,850 $57 219 $51,591 $58,422 $85,122 Print Done

Algebra and Trigonometry (MindTap Course List)
4th Edition
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter1: Equations And Graphs
Section1.FOM: Focus On Modeling: Fitting Lines To Data
Problem 10P
icon
Related questions
Question

I need help with question b

A national homebuilder builds single-family homes and condominium-style townhouses. The accompanying dataset provides information on the selling price, lot cost, and type of home for closings during one month. Complete parts a through c.
Family
E Click the icon to view the house sales data.
House sales data
a. Develop a multiple regression model for sales price as a function of lot cost and type of home without any interaction term.
Create a dummy variable named "Townhouse", where it is equal to 1 when Type = "Townhouse" and 0 otherwise. Determine the coefficients of the regression equation.
Sales Price
$114,740
$138,530
$149,905
$172,000
$183,916
$189,390
$191,120
$198.898
Lot Cost
$21,700
$26,550
$25.550
Туре
Townhouse
Sales Price = 108726 + ( 3.68 ) • Lot Cost + ( - 75063 ) • Townhouse
Single Family
(Round the constant and coefficient of Townhouse to the nearest integer as needed. Round all other values to two decimal places as needed.)
Townhouse
Single Famins
Townhouse
$26,200
$46,025
$28,000
$36,000
$46,025
$46,025
$40,299
$37,500
b. Determine if an interaction exists between lot cost and type of home and find the best model. Use a = 0.1 as the level of significance
Townhouse
First determine whether an interaction exists. Select the correct choice below and, if necessary, fill in the answer box to complete your choice.
Single Family
house
Townhouse
O A. An interaction exists because the p-value of the variable Lot Cost • Townhouse is
,which is less than a
Townhouse
Single Family
Single Family
Townhouse
$205.076
(Type an integer or a decimal rounded to three decimal places as needed.)
$207,821
$216.205
O B. An interaction exists because the p-value of the variable Townhouse is
(Type an integer or a decimal rounded to three decimal places as needed.)
which is greater than a.
$74,400
$44,198
$44,344
$42,099
$46,000
$45,650
$58,000
$60,000
$46,850
$252,800
$257,000
Single Family
Single Family
O C. An interaction exists because the p-value of the variable Lot Cost is
which is greater than a.
Single Family
Single Family
Single Family
Family
Single Family
Single Family
Single Family
Single Family
$270.000
$270,500
$273,105
$279,720
$296,990
$303,500
$309,487
(Type an integer or a decimal rounded to three decimal places as needed.)
O D. No interaction exists because the p-value is less than a for all of the independent variables.
$314,898
$321,602
$326,412
$339,374
$339,380
$340,065
$356,117
$361 949
$41,768
$83,300
$63,523
$71,449
S50 150
Single Family
Single
Single
Family
Single
Family
S55.850
Family
Single Family
Single Family
Single Family
Single
$57 219
$51.591
$434,426
$494.820
$58.422
$85,122
Print
Done
Transcribed Image Text:A national homebuilder builds single-family homes and condominium-style townhouses. The accompanying dataset provides information on the selling price, lot cost, and type of home for closings during one month. Complete parts a through c. Family E Click the icon to view the house sales data. House sales data a. Develop a multiple regression model for sales price as a function of lot cost and type of home without any interaction term. Create a dummy variable named "Townhouse", where it is equal to 1 when Type = "Townhouse" and 0 otherwise. Determine the coefficients of the regression equation. Sales Price $114,740 $138,530 $149,905 $172,000 $183,916 $189,390 $191,120 $198.898 Lot Cost $21,700 $26,550 $25.550 Туре Townhouse Sales Price = 108726 + ( 3.68 ) • Lot Cost + ( - 75063 ) • Townhouse Single Family (Round the constant and coefficient of Townhouse to the nearest integer as needed. Round all other values to two decimal places as needed.) Townhouse Single Famins Townhouse $26,200 $46,025 $28,000 $36,000 $46,025 $46,025 $40,299 $37,500 b. Determine if an interaction exists between lot cost and type of home and find the best model. Use a = 0.1 as the level of significance Townhouse First determine whether an interaction exists. Select the correct choice below and, if necessary, fill in the answer box to complete your choice. Single Family house Townhouse O A. An interaction exists because the p-value of the variable Lot Cost • Townhouse is ,which is less than a Townhouse Single Family Single Family Townhouse $205.076 (Type an integer or a decimal rounded to three decimal places as needed.) $207,821 $216.205 O B. An interaction exists because the p-value of the variable Townhouse is (Type an integer or a decimal rounded to three decimal places as needed.) which is greater than a. $74,400 $44,198 $44,344 $42,099 $46,000 $45,650 $58,000 $60,000 $46,850 $252,800 $257,000 Single Family Single Family O C. An interaction exists because the p-value of the variable Lot Cost is which is greater than a. Single Family Single Family Single Family Family Single Family Single Family Single Family Single Family $270.000 $270,500 $273,105 $279,720 $296,990 $303,500 $309,487 (Type an integer or a decimal rounded to three decimal places as needed.) O D. No interaction exists because the p-value is less than a for all of the independent variables. $314,898 $321,602 $326,412 $339,374 $339,380 $340,065 $356,117 $361 949 $41,768 $83,300 $63,523 $71,449 S50 150 Single Family Single Single Family Single Family S55.850 Family Single Family Single Family Single Family Single $57 219 $51.591 $434,426 $494.820 $58.422 $85,122 Print Done
Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 3 steps

Blurred answer
Similar questions
Recommended textbooks for you
Algebra and Trigonometry (MindTap Course List)
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:
9781305071742
Author:
James Stewart, Lothar Redlin, Saleem Watson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781337282291
Author:
Ron Larson
Publisher:
Cengage Learning
College Algebra
College Algebra
Algebra
ISBN:
9781938168383
Author:
Jay Abramson
Publisher:
OpenStax
Functions and Change: A Modeling Approach to Coll…
Functions and Change: A Modeling Approach to Coll…
Algebra
ISBN:
9781337111348
Author:
Bruce Crauder, Benny Evans, Alan Noell
Publisher:
Cengage Learning