The Dow Jones Industrial Average (DJIA) underwent one of its infrequent reshufflings of 1 answer below »

The Dow Jones Industrial Average (DJIA) underwent one of its infrequent reshufflings of
companies when General Motors and Citigroup were replaced by Cisco Systems and Travelers
(The Wall Street Journal, June 8, 2009). At the time, the prices per share for the 30
companies in the DJIA were as follows:
46 Chapter 2 Descriptive Statistics: Tabular and Graphical Presentations
12. Consider the following frequency distribution.
Class Frequency
10–19 10
20–29 14
30–39 17
40–49 7
50–59 2
Company $/Share Company $/Share
3M 61 IBM 107
Alcoa 11 Intel 16
American Express 25 J.P. Morgan Chase 35
AT&T 24 Johnson & Johnson 56
Bank of America 12 Kraft Foods 27
Boeing 52 McDonald’s 59
Caterpillar 38 Merck 26
Chevron 69 Microsoft 22
Cisco Systems 20 Pfizer 14
Coca-Cola 49 Procter & Gamble 53
DuPont 27 Travelers 43
ExxonMobil 72 United Technologies 56
General Electric 14 Verizon 29
Hewlett-Packard 37 Wal-Mart Stores 51
Home Depot 24 Walt Disney 25
a. What is the highest price per share? What is the lowest price per share?
b. Using a class width of 10, develop a frequency distribution for the data.
c. Prepare a histogram. Interpret the histogram, including a discussion of the general
shape of the histogram, the midprice range, and the most frequent price range.
d. Use the The Wall Street Journal or another newspaper to find the current price per
share for these companies. Prepare a histogram of the data and discuss any changes
since June 2009. What company has had the largest increase in the price per share?
What company has had the largest decrease in the price per share?

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