Among other services, Standard and Poor’s (S&P) rates the risk of default for corporate bonds. AAA bonds are top rated (smallest chance of default), followed by AA, A, BBB, BB, B, CCC, CC, and last D. In a table of bond ratings crossed with the presence or absence of default, would you expect to see association?
Answer to relevant QuestionsNumerous epidemiological studies associate a history of smoking with the presence of lung cancer. If a study finds association (cancer rates are higher among smokers), does this mean that smoking causes cancer? A men’s clothing retailer stocks a variety of men’s shirts. The data for this question record the type of sales during the last three months, indicating shirt style and size. (You should recognize these data!) (a) Find ...This table shows percentages of men and women employed in four industries.13 (a) Is there association between the gender of the employee and the industry? How can you tell? (b) Interpret the association (or lack ...Contingency tables appear frequently in legal cases, such as those that allege that a company has discriminated against a protected class. The following table gives the number of employees of different ages who were laid off ...The Organization for Economic Cooperation and Development (OECD) is a loose affiliation of 30 nations. The data in this scatterplot show the percentage of disposable income for a single citizen that remains after paying ...
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