a Develop a linear regression equation for air conditioner sales as a function of the average weekly temperature. b Forecast air conditioner sales if the average weekly temperature is 88 degrees Fahrenheit. c Evaluate the "goodness of fit" of the regression equation by computing the values of R2, r, and Sxy and interpret the results.

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter13: Regression And Forecasting Models
Section: Chapter Questions
Problem 32P
icon
Related questions
Question

The manager of Mayo Department Store want to evaluate
the relationship between the sales of air conditioners and
the average weekly temperature. The following weekly
sales data along with the average daytime temperatures
for 10 one-week periods are shown in the following table:
Week                        Air-conditioner Sales(in units)                      Average Temperature (in degrees Fahrenheit)
1                100           78
2                  85           70
3                103           85
4                110           90
5                  70           75
6                115           94
7                150         101
8                120            98
9                  97            86
10                85             80


a Develop a linear regression equation for air conditioner
sales as a function of the average weekly temperature.
b Forecast air conditioner sales if the average weekly
temperature is 88 degrees Fahrenheit.
c Evaluate the "goodness of fit" of the regression
equation by computing the values of R2, r, and Sxy and
interpret the results.

Expert Solution
trending now

Trending now

This is a popular solution!

steps

Step by step

Solved in 4 steps with 4 images

Blurred answer
Knowledge Booster
Forecasting
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, operations-management and related others by exploring similar questions and additional content below.
Similar questions
  • SEE MORE QUESTIONS
Recommended textbooks for you
Practical Management Science
Practical Management Science
Operations Management
ISBN:
9781337406659
Author:
WINSTON, Wayne L.
Publisher:
Cengage,