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 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 = (round your response to four decimal places).

Practical Management Science
6th Edition
ISBN:9781337406659
Author:WINSTON, Wayne L.
Publisher:WINSTON, Wayne L.
Chapter2: Introduction To Spreadsheet Modeling
Section: Chapter Questions
Problem 20P: Julie James is opening a lemonade stand. She believes the fixed cost per week of running the stand...
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part D
<
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
7 5
9 6
Y = 3.1552 + 0.4138 x
D
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):
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 = (round your response to four decimal places).
ncorrect:
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 8 7 2 6 6 4 7 5 9 6 Y = 3.1552 + 0.4138 x D 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): 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 = (round your response to four decimal places). ncorrect:
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