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This additional analysis is for study purposes only, not to turn in. Each question from the regression template is analyzed and answered separately with full explanation in written and video format.
A company pursued three advertising campaigns across three different media — TV, Radio, and Newspaper. The company promoted a variety of products in 200 different markets.
Spending for each media type in each market was recorded in 1000's of USD along with unit Sales.
Purpose of the analysis:
How is spending in these markets related to Sales of the company's products? Which markets to recommend to management?
➠ Run the regression analysis and then try answering the questions closed book on the regression template before reviewing the solutions.
I have answered all the questions on the Regression Template for completeness. However, note that the Outlier question has not been included in the homework and so will not be included on the Final.
Introduction [2:52]
Correlation Matrix [3:43]
The Model [5:56]
Hypothesis Test [12:23]
Confidence Interval [9:39]
Model Selection and Fit [10:31]