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 Demand for Guitars 4 3 8 7 2 6 6 4 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 = 3.1552 + 0.4138 x 7 9 c) The estimate for guitar sales if Maroon 5 performed on TV 9 times= 6.88 sales (round your response to two decimal places). d) The correlation coefficient (r) for this model = 0.3470 (round your response to four decimal places). The coefficient of determination (2) for this model = (round your response to four decimal places). O 5 6

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter7: Nonlinear Optimization Models
Section7.6: Models For Rating Sports Teams
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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
Demand for Guitars
4 3
2 6
8
6
Y = 3.1552 +0.4138 x
7
4
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):
D
7 5
9 6
c) The estimate for guitar sales if Maroon 5 performed on TV 9 times= 6.88 sales (round your response to two decimal places).
d) The correlation coefficient (r) for this model = 0.3470
The coefficient of determination (2) for this model =
(round your response to four decimal places).
(round your response to four decimal places).
Transcribed Image Text: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 Demand for Guitars 4 3 2 6 8 6 Y = 3.1552 +0.4138 x 7 4 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): D 7 5 9 6 c) The estimate for guitar sales if Maroon 5 performed on TV 9 times= 6.88 sales (round your response to two decimal places). d) The correlation coefficient (r) for this model = 0.3470 The coefficient of determination (2) for this model = (round your response to four decimal places). (round your response to four decimal places).
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