TABLE 12-5 Four Surgical Procedures Currently Are Used to Install Pacemakers. If

question 167

Short Answer

TABLE 12-5
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 proportion of clear operations for the 4 procedures and collects the following numbers of patients from their own records:

They will use this information to test for a difference among the proportion of clear operations using a chi-square test with a level of significance of 0.05.
-Referring to Table 12-5, the expected cell frequency for the Procedure A/Clear cell is ________.

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Definitions:

Racial Groups

Collections of people who are categorized based on shared physical or social qualities into categories generally viewed as distinct within a given society.

U.S. Cities

Urban areas within the United States characterized by significant populations, infrastructure, and economic activity.

Redlining

A discriminatory practice by which services (like banking or insurance) are withheld from potential customers in certain areas, often based on race.

Discriminatory Practice

Actions or policies that treat individuals or groups unfairly based on characteristics such as race, gender, age, or sexual orientation.