What is the correlation coefficient ?r? for this model

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Reference no: EM131861001

Mark Gershon, owner of a musical instrument dis-tributorship, thinks that demand for guitars may be related to the number of television appearances by the popular group Maroon 5 during the previous month.

Mark has collected the data shown in the following table:

Marooon 5 Apperances	3	3	8	7	7	6
Demand for Guitars	3	6	6	4	11	8

?b) Using the? least-squares regression? method, the equation for forecasting is ?(round your responses to four decimal ?places)?: Y? = .....?+ ......... x ?

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 ?(r?) for this model? =.... (round your response to four decimal? places).

e)The coefficient of determination ?(r squared ?) for this model? = ...... ?(round your response to four decimal? places).

f) The percentage of variation in sales that can be explained by TV appearances? =....... ?(round your response to two decimal? places).

Reference no: EM131861001

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