Question

Problem 4.43bcd - Bookmatch

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	3	4	7	6	8	5
Demand for Guitars	3	6	7	5	10	7

This exercise contains only parts​ b, c, and d.

​a) Using the​ least-squares regression​ method, the equation for forecasting is ​(round your responses to four decimal​ places):

Y​ =_____​+___x

b.) The correlation coefficient (r) for this model = __ (round your response to four decimal places).

The coefficient of determination (r squared) for this model is __ (round your response to four decimal places)

The percentage of variation in sales that can be explained by TV appearances = __% round your response to two decimal places)

Answer 1