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:
Goals
The objectives or desired outcomes that an individual or organization aims to achieve within a specific timeframe.
Objectives
Specific, measurable goals set by a business or individual to achieve desired outcomes.
Measurable Performance
The aspect of performance that can be quantitatively assessed or evaluated through specific metrics or indicators.
Benchmarks
Standard points of reference against which things can be measured or assessed, often used for comparing performance or quality.
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