Mark Gershon, owner of a musical instrument distributorship, thinks that demand for guitars may be related to the number of television appearances by the popular group Maroon 5 during the previous month. Gershon has collected the data shown in the following table: Maroon 5 TV Appearances 4 3 8 6 9 6 Demand for Guitars 4 5 7 6 9 8
Mark Gershon, owner of a musical instrument distributorship, thinks that demand for guitars may be related to the number of television appearances by the popular group Maroon 5 during the previous month. Gershon has collected the data shown in the following table: Maroon 5 TV Appearances 4 3 8 6 9 6 Demand for Guitars 4 5 7 6 9 8
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Question
Mark Gershon, owner of a musical instrument distributorship, thinks that demand for guitars may be related to the number of television appearances by the popular group Maroon 5 during the previous month. Gershon has collected the data shown in the following table:
|
Maroon 5 TV Appearances
|
4
|
3
|
8
|
6
|
9
|
6
|
|
Demand for Guitars
|
4
|
5
|
7
|
6
|
9
|
8
|
This exercise contains only parts b, c, and d.
b) Using the least-squares regression method, the equation for forecasting is (round your responses to four decimal
places):
Y = +
c) The estimate for guitar sales if Maroon 5 performed on TV
11 times =
sales (round your response to two decimal places).
d) The correlation coefficient
(round your response to four decimal places).
(r) for this model =
The coefficient of determination
(round your response to four decimal places).
(r2)
for this model =
The percentage of variation in sales that can be explained by TV appearances =
%
(round your response to two decimal places).Expert Solution
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