Four Surgical Procedures Currently Are Used to Install Pacemakers

question 71

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

• A) 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)Kruskal-Wallis rank Test.

---

Definitions:

Emigration

The act of leaving one's country or region to live in another, motivated by factors such as economic opportunities, political asylum, or family reunification.

Asia

The largest continent on Earth, known for its vast diversity in cultures, languages, and geographical landscapes.

Latin America

A region in the western hemisphere, comprising countries where Romance languages (primarily Spanish and Portuguese) are predominant, known for its diverse cultures, historical ties to colonialism, and significant natural resources.

Iran Arms Deal

Refers to a controversial arrangement, officially known as the Iran-Contra affair, where the United States secretly facilitated the sale of arms to Iran, which was then under an arms embargo, during the 1980s.