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 |
33 |
55 |
77 |
55 |
77 |
55 |
Demand for Guitars |
44 |
66 |
88 |
66 |
1111 |
66 |
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 =
nothing
+
nothingx
c) The estimate for guitar sales if Maroon 5 performed on TV
99
times =
nothing
sales (round your response to two decimal places).d) The correlation coefficient
(r)
for this model =
nothing
(round your response to four decimal places).The coefficient of determination
(r squaredr2)
for this model =
nothing
(round your response to four decimal places).The percentage of variation in sales that can be explained by TV appearances =
nothing%
(round your response to two decimal places).
b))
The equation is
Y = -0.8529 + 1.4412X
c)
When X = 9
Y = -0.8529 +1.4412*9 = 12.12 guitars
d)
Percentage of variation explained is given by R square value
Percentage of variation explained = 81.64 %
Mark Gershon, owner of a musical instrument distributorship, thinks that demand for guitars may be related...
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 33 33 66 66 88 55 Demand for Guitars 22 66 66 66 99 77 This exercise contains only parts b, c, and d. b) Using the least-squares regression method, the equation for...
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 4 6 5 8 5 4 5 8 6 98 This exercise contains only parts b, c, and d. b) Using the least-squares regression method, the equation for forecasting is...
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 33 55 66 77 77 66 Demand for Guitars 33 55 88 44 1010 77 This exercise contains only parts b, c, and d. b) Using the least-squares regression method, the equation for...
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 5 7 6 7 6 Demand for Guitars 3 6 7 6 9 6 b) using the least squares regression method, the equation for forecasting is y=_____+___x c) The estimate for guotar...
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 5 8 5 9 7 Demand for Guitars 4 6 6 4 9 6 This exercise contains only parts b, c, and d. b) Using the least-squares regression method, the equation for forecasting...
..4.43 Mark Gershon, owner of a musical instrument dis- tributorship, thinks that demand for guitars may be related to the umber of television appearances by the popular group Maroon 5 during the previous month. Mark has collected the data shown in the following table: DEMAND FOR GUITARS 3 6 7 5 10 7 MAROON 5 TV APPEARANCES 4 6 a) Graph these data to see whether a linear equation might describe the relationship between the group's television shows b) Use...
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