Business Analytics Data Analysis and Decision Making 5th edition S. Christian Albright, Wayne L. Winston - Solutions

The file P02_18.xlsx contains daily values of the Standard & Poor’s 500 Index from 1970 to early 2012. It also contains percentage changes in the index from each day to the next.a. Create a histogram of the percentage changes and describe its shape.b. Check the percentage of these percentage
Recall that the file Baseball Salaries 2011.xlsx contains data on 843 MLB players in the 2011 season. Using these data, create a box plot to characterize the distribution of salaries of all pitchers. Do the same for non-pitchers. Summarize your findings.
The file DJIA Monthly Close.xlsx contains monthly values of the Dow Jones Industrial Average from 1950 through 2011. It also contains the percentage changes from month to month. (This file will be used for an example later in this chapter.) Create a new column for recoding the percentage changes
The file P02_04.xlsx contains salary data on all Major League Baseball players for each year from 2002 to 2011. (The 2011 sheet is used for examples later in this chapter.) For any three selected years, create a table of counts of the various positions, expressed as percentages of all players for
Recall that the file Baseball Salaries 2011 Extra.xlsx contains data on 843 Major League Baseball (MLB) players during the 2011 season. Use StatTools to find the mean, median, standard deviation, and first and third quartiles of Salary, broken down by each of the following categories. Comment on
A researcher is interested in determining whether there is a relationship between the number of room air conditioning units sold each week and the time of year. What type of descriptive chart would be most useful in performing this analysis? Explain your choice.
The number of children living in each of a large number of randomly selected households is an example of which data type? Be specific.

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