Four Surgical Procedures Currently Are Used to Install Pacemakers

question 38

Multiple Choice

Four surgical procedures currently are used to install pacemakers. If the patient does not need to return for follow-up surgery, the operation is called a "clear" operation. A heart center wants to compare the 4 procedures and collects the following numbers of patients from their own records: Procedure

Which of the following tests will be the most appropriate to find out whether the 4 procedures are equally effective?

• A) X² test for difference in proportions.
• B) Z test for difference in proportions.
• C) One-way ANOVA F test for differences among more than two means
• D) McNemar test.

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Definitions:

Government Programs

Initiatives or plans undertaken by a government to address social, economic, or environmental issues, which may involve legislation, services, or funding.

Distribution Of Income

The way in which total income is shared out among households, firms, and the government within an economy.

Income Inequality

Refers to the unequal distribution of wealth and income among the members of a society.

Preferences

In economics, the individual tastes or desires that dictate the choices made by consumers based on the satisfaction or utility they get.