Maurice Tutor

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    Argosy University/ Phoniex University/
    Nov-2005 - Oct-2011

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    Phoniex University
    Oct-2001 - Nov-2016

Category > Management Posted 11 Feb 2018 My Price 8.00

GM’s percent of the mar- ket

41.   The table below shows the number of cars (in millions) sold in the United States for var- ious years and the percent of those cars manufactured by GM.

Year

Cars Sold (millions)

Percent GM

 

Year

Cars Sold (millions)

Percent GM

1950

6.0

50.2

1980

11.5

44.0

1955

7.8

50.4

1985

15.4

40.1

1960

7.3

44.0

1990

13.5

36.0

1965

10.3

49.9

1995

15.5

31.7

1970

10.1

39.5

2000

17.4

28.6

1975

10.8

43.1

2005

16.9

26.9

 

 

 

Use a statistical software package to answer the following questions.

a.   Is the number of cars sold directly or indirectly related to GM’s percent of the mar- ket? Draw a scatter diagram to show your conclusion.

b.  Determine the correlation coefficient between the two variables. Interpret the value.

c.   Is it reasonable to conclude that there is a negative association between the two vari- ables? Use the .01 significance level.

d.  How much of the variation in GM’s market share is accounted for by the variation in cars sold?

 

Answers

Maurice Tutor
(5)
Status NEW Posted 11 Feb 2018 03:02 PM My Price 8.00

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