Regression analysis problem
Not what you're looking for?
2-3 PAGES WITH EXCEL GRAPHS. SEE ATTACHED FILE.
Use the Cartesian coordinate system to find the distance between two points; illustrate linear functions and their relationship to business, economics, social science, etc., and find the intersection of two lines.
Great news! ABC Advertising has called you in for an interview to join their advertising team. During the interview process, you are expected to solve a linear regression problem. Consider the following data in the table below that show U.S. advertising expenditures in millions of the current U.S. dollars.
Based on these data, please supply the following:
1. Provide graphs of Grand Total versus Year, Newspapers versus Year, and Internet versus Year.
2. Which advertising expenditure from #1 has the best linear graph for predicting? Explain.
3. Based on your answer for #2, provide a regression equation for the advertising method and explain how well the equation predicts known expenditure values.
4. How quickly are expenditures for the advertising method chosen in #2, growing per year? Would you expect this rate to continue? Explain why or why not.
5. Complete a 5-year prediction for advertising expenditures for the particular advertising method chosen in #2. Next, complete a 20-year prediction. Explain the validity in these predictions.
6. Based on the method chosen in #2, in what year would you expect the Internet expenditures to reach 20,000 (in millions)? Explain the validity of this prediction
Purchase this Solution
Solution Summary
This posting contains solution to following problem on regression analysis.
Purchase this Solution
Free BrainMass Quizzes
Measures of Central Tendency
Tests knowledge of the three main measures of central tendency, including some simple calculation questions.
Know Your Statistical Concepts
Each question is a choice-summary multiple choice question that presents you with a statistical concept and then 4 numbered statements. You must decide which (if any) of the numbered statements is/are true as they relate to the statistical concept.
Measures of Central Tendency
This quiz evaluates the students understanding of the measures of central tendency seen in statistics. This quiz is specifically designed to incorporate the measures of central tendency as they relate to psychological research.
Terms and Definitions for Statistics
This quiz covers basic terms and definitions of statistics.