Econ help!!!?

A shoe company in the United States is examining the relationship between sales and advertising. Sales measures the number of pairs of shoes sold in various months. Advertising measures the amount of money spent on TV commercials in the same months. The company%26#039;s economist will graph this relationship, given the information provided by the company.





Which of the following would be an appropriate label for a variable on one axis on this graph?





Dollars





B. Pairs of shoes per month





C. Sales





D. Minutes





E. Months

Econ help!!!?
The company is providing only two figures for each month:


(x) the dollars spent on TV commercial advertising for each month for several months


and,


(y) the pair of shoes sold each month for the same several months.


So, the economist will have n paired observation (xi, yi) i= 1, 2, ....., n. He will plot these figures on the graph first to see if there is apparently any relation between x and y in the sense of whether high value x is associated with high values of y. If the cluster points on the graph does suggest some correlation, he/she can then try to have a best fit curve drawn/ estimated with the standard statistical method like least squares regression or second degree curve fitting.


The economist may label the X-axis as the Advertising Spend ( measured by dollars spent on TV ads) and Y-axis as Sales Quantity (measured by no. of pairs of shoes sold).


Labels like months or minutes or dollars will not do. Labelling sales may be confusing because sales can be expressed both in terms of value and quantity. For clarity, he should use the label no. of pairs of shoes sold or Sales quantity.


Greater the clarity in labelling the better is for the readers to understand easily. Communication should not be in confusing or imprecise manner.



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