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 previous month. Gershon has collected the data shown in the following table: Maroon 5 TV Appearances Demand for Guitars 3 3 7 6 7 2 D 7 8 7 6 11 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)

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