Question

a. For each of the four columns of the table, classify the data as either qualitative or quantitative; if quantitative, further classify it as discrete or continuous. Also identify the variable under consideration in each case.
b. Use cutpoint grouping to organize the compensation data into frequency and relative-frequency distributions. Use a class width of 5 and a first cutpoint of 5.
c. Construct frequency and relative-frequency histograms of the compensation data based on your grouping in part (b).
d. Identify and interpret the shape of your histograms in part (c).
e. Truncate each compensation to a whole number (i.e., find the greatest integer in each compensation), and then obtain a stem-and-leaf diagram of the resulting data, using two lines per stem.
f. Round each compensation to a whole number, and then obtain a stem-and-leaf diagram of the resulting data, using two lines per stem.
g. Which of the stem-and-leaf diagrams in parts (e) and (f) corresponds to the frequency histogram in part (c)? Can you explain why?
h. Round each compensation to a whole number, and then obtain a dotplot of the resulting data.
Recall that, each year, Fortune Magazine presents rankings of America's leading businesswomen, including lists of the most powerful, highest paid, youngest, and "movers." On page 35, we displayed a table showing Fortune's list of the 25 highest paid women.


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  • CreatedAugust 13, 2015
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