1. Which do you think shall serve as independent variable? How about dependent variable? Why? 2. Draw a scatterplot depicting the relationship between time and sale 3. Determine each of the following: a. n

Practical Management Science
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Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
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Sample Problem: Estimate the demand function for the case below.
The manager of a jeans manufacturing company knows that a large budget tot
television advertising of the company's product will create a demand among
buyers in their boutiques found in malls. The following table shows the pesos
(in thousands) spent for advertising the line of jeans over the past eight years
and the number of pairs of jeans sold (in thousand).
Amount in Pesos spent on
Number of pairs of pants
sold (in 000s)
Year
TV Advertisng (in 000s)
2010
P500.00
45
2011
P650.00
60
2012
P750.00
80
2013
P1000.00
95
2014
P1250.00
120
2015
P1400.00
150
2016
P1700.00
145
2017
P1950.00
190
Transcribed Image Text:Sample Problem: Estimate the demand function for the case below. The manager of a jeans manufacturing company knows that a large budget tot television advertising of the company's product will create a demand among buyers in their boutiques found in malls. The following table shows the pesos (in thousands) spent for advertising the line of jeans over the past eight years and the number of pairs of jeans sold (in thousand). Amount in Pesos spent on Number of pairs of pants sold (in 000s) Year TV Advertisng (in 000s) 2010 P500.00 45 2011 P650.00 60 2012 P750.00 80 2013 P1000.00 95 2014 P1250.00 120 2015 P1400.00 150 2016 P1700.00 145 2017 P1950.00 190
Here are some guide questions that will help you determine the demand
function:
1. Which do you think shall serve as independent variable? How
about dependent variable? Why?
2. Draw a scatterplot depicting the relationship between time and sales.
3. Determine each of the following:
a.
72
totaloF
Ey?
b.
tubloF
C.
Exy"
d.
e.
£ (Ex)* =
h. y
1.
j.
1 Develop the demand equation using your answers in part 2.
Interpret coefficients a and B.
4. Forecast the demand for 2018, 2019, and 2020 based on the demand
function that you have estimated.
11
Transcribed Image Text:Here are some guide questions that will help you determine the demand function: 1. Which do you think shall serve as independent variable? How about dependent variable? Why? 2. Draw a scatterplot depicting the relationship between time and sales. 3. Determine each of the following: a. 72 totaloF Ey? b. tubloF C. Exy" d. e. £ (Ex)* = h. y 1. j. 1 Develop the demand equation using your answers in part 2. Interpret coefficients a and B. 4. Forecast the demand for 2018, 2019, and 2020 based on the demand function that you have estimated. 11
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