In a company introducing a new product on the market it was decided to build a model explaining the dependence of the sales volume Y (in thousands of units) on the tested price of the product X_1 (in PLN) and expenditure on promotion and advertising of the product X_2 (in thousands of PLN). Based on the data given in the table below
In a company introducing a new product on the market it was decided to build a model explaining the dependence of the sales volume Y (in thousands of units) on the tested price of the product X_1 (in PLN) and expenditure on promotion and advertising of the product X_2 (in thousands of PLN). Based on the data given in the table below
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 2AGP
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Question
![In a company introducing a new product on the market it was decided to build a model explaining
the dependence of the sales volume Y (in thousands of units) on the tested price of the product X_1
(in PLN) and expenditure on promotion and advertising of the product X_2 (in thousands of PLN).
Based on the data given in the table below
Xt2
20
X+1
Yt
15
16
20
19
30
22
31
23
35
25
30
correlation coefficients between variables were calculated and obtained
[-0, 98
0,86.
Ro
= - vector of correlation coefficients of the endogenous variable with potential explanatory variables,
1
-0,9
- matrix of correlation coefficients between pairs of potential explanatory variables.
R=
-0,9
Find:
(e) Interpret the results obtained
Use Excel or MatLab or other.
987 655](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fc5a12706-f39f-4229-b2f2-b0cf265f3098%2Fd4066a4f-a912-4db1-9bea-163ce449bfa2%2Ftpw9o01_processed.png&w=3840&q=75)
Transcribed Image Text:In a company introducing a new product on the market it was decided to build a model explaining
the dependence of the sales volume Y (in thousands of units) on the tested price of the product X_1
(in PLN) and expenditure on promotion and advertising of the product X_2 (in thousands of PLN).
Based on the data given in the table below
Xt2
20
X+1
Yt
15
16
20
19
30
22
31
23
35
25
30
correlation coefficients between variables were calculated and obtained
[-0, 98
0,86.
Ro
= - vector of correlation coefficients of the endogenous variable with potential explanatory variables,
1
-0,9
- matrix of correlation coefficients between pairs of potential explanatory variables.
R=
-0,9
Find:
(e) Interpret the results obtained
Use Excel or MatLab or other.
987 655
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