Shown below is a portion of the computer output for a regression analysis relating sales (Y in millions of dollars) and advertising expenditure (X in thousands of dollars). 
a. What has been the sample size for the above?
b. Perform a t test and determine whether or not advertising and sales are related. Let = 0.05.
c. Compute the coefficient of determination.
d. Interpret the meaning of the value of the coefficient of determination that you found in Part c. Be very specific.e. Use the estimated regression equation and predict sales for an advertising expenditure of $4,000. Give your answer in dollars.
Definitions:
Organizational Behaviour
The study of both group and individual performance and activity within an organization.
Older Workers
Employees of an advanced age, often considered to be those near or beyond the typical age of retirement.
Attracting
involves the process or strategies used by organizations or individuals to draw interest or engagement from others.
Hiring
The process of finding, interviewing, and employing individuals to fill job positions within an organization.
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