Question

# The table below shows the number of cars sold last month by seven employees at Concord...

The table below shows the number of cars sold last month by seven employees at Concord

Motors and their number of years of sales experience.

 Experience Sales 1 8 2 6 2 7 4 14 5 9 6 13 8 10

Management would like to use simple regression analysis to estimate monthly car sales using the sales as a function of experience (in years). Which of the following is true?

 Experience is the independent variable.
 Sales is the independent variable
 Not enough information to determine which variable is independent or dependent
 Experience is the dependent variable

It is given that the management would like to use simple regression analysis to estimate monthly car sales using the sales as a function of experience (in years), i.e. this means that the dependent variable is sales and independent variable is the experience because sales is calculated as a function of experience.

So, only option A is correct because experience is the independent variable

option B is incorrect because sales is not independent variable.

option C is incorrect because we have enough information to determine which variable is independent.

option D is incorrect because experience is not dependent variable

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