Question
Table Annual Revenue and Rating for Americas 30 Large Corporations shows are the Americas 30 large corporations, with annual revenue expressed in billions of dollars
Table Annual Revenue and Rating for Americas 30 Large Corporations shows are the Americas 30 large corporations, with annual revenue expressed in billions of dollars (source: CNN Money website, January 15, 2010) and ABCD rating index category (source: mock data). The table Annual Revenue and Rating for Americas 30 Large Corporations can be found in the table below.
Table. Annual Revenue and Rating for America's 30 Large Corporations | ||
Corporation | Revenue | ABCD Rating Index |
Amerisource Bergen | 71 | A |
Archer Daniels Midland | 70 | B |
AT&T | 124 | B |
Bank of America | 113 | C |
Berkshire Hathaway | 108 | A |
Boeing | 61 | A |
Cardinal Health | 91 | B |
Chevron | 263 | D |
Citigroup | 112 | C |
ConocoPhillips | 231 | D |
Costco Wholesale | 72 | A |
CVS Caremark | 87 | A |
Exxon Mobil | 443 | D |
Ford Motors | 146 | A |
General Electric | 149 | A |
Hewlett-Packard | 118 | B |
Home Depot | 71 | A |
IBM | 104 | B |
Johnson & Johnson | 64 | B |
JPMorgan Chase | 101 | B |
Kroger | 76 | C |
Marathon Oil | 74 | A |
McKesson | 102 | A |
Morgan Stanley | 62 | A |
Procter & Gamble | 84 | A |
Target | 65 | A |
UnitedHealth Group | 81 | B |
Valero Energy | 118 | B |
Verizon | 97 | B |
Walmart | 406 | D |
a. In a table, summarize the Revenue by constructing the following:
(i) a frequency distribution;
(ii) a relative frequency distribution;
(iii) a percent frequency;
(iv) a cumulative frequency distribution;
(v) a cumulative relative frequency distribution.
b. What do these distributions tell you about the annual revenue of the 30 large corporations in America?
c. Make a histogram with frequency on the y-axis and comment on the shape of the distribution.
d. Make a histogram with percent frequency on the y-axis and comment how it differs from histogram in question c.
e. In a table, show the relationship between corporation revenue and ABCD rating index using cross tabulation method.
f. Comment on the relationship between corporation revenue and ABCD rating index based on the table created in question c.
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