Essentials of Business Analytics (MindTap Course List)
2nd Edition
ISBN: 9781305627734
Author: Jeffrey D. Camm, James J. Cochran, Michael J. Fry, Jeffrey W. Ohlmann, David R. Anderson
Publisher: Cengage Learning
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Textbook Question
Chapter 3, Problem 20P
The following table shows monthly revenue for six different web development companies.
- a. Use Excel to create sparklines for sales at each company.
- b. Which companies have generally decreasing revenues over the six months? Which company has exhibited the most consistent growth over the six months? Which companies have revenues that are both increasing and decreasing over the six months?
- c. Use Excel to create a heat map for the revenue of the six companies. Do you find the heat map or the sparklines to be better at communicating the trend of revenues over the six months for each company? Why?
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Chapter 3 Solutions
Essentials of Business Analytics (MindTap Course List)
Ch. 3 - A sales manager is trying to determine appropriate...Ch. 3 - The following table shows an example of gross...Ch. 3 - The following table provides monthly revenue...Ch. 3 - In the file MajorSalary, data have been collected...Ch. 3 - Entrepreneur magazine ranks franchises. Among the...Ch. 3 - The file MutualFunds contains a data set with...Ch. 3 - The file TaxData contains information from federal...Ch. 3 - The file FDICBankFailures contains data on...Ch. 3 - The following 20 observations are for two...Ch. 3 - The file Fortune500 contains data for profits and...
Ch. 3 - The International Organization of Motor Vehicle...Ch. 3 - Prob. 12PCh. 3 - Prob. 13PCh. 3 - The total number of term life insurance contracts...Ch. 3 - An automotive company is considering the...Ch. 3 - Consider the following survey results regarding...Ch. 3 - The Northwest regional manager of Logan Outdoor...Ch. 3 - The Ajax Company uses a portfolio approach to...Ch. 3 - Heat maps can be very useful for identifying...Ch. 3 - The following table shows monthly revenue for six...Ch. 3 - Prob. 21PCh. 3 - Aurora Radiological Services is a health care...Ch. 3 - The motion picture industry is an extremely...
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- (b) Demonstrate that if X and Y are independent, then it follows that E(XY) E(X)E(Y);arrow_forward(d) Under what conditions do we say that a random variable X is integrable, specifically when (i) X is a non-negative random variable and (ii) when X is a general random variable?arrow_forward29. State the Borel-Cantelli Lemmas without proof. What is the primary distinction between Lemma 1 and Lemma 2?arrow_forward
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