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

question 129

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 value of the test statistic is ________.

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Definitions:

Cerebrum

The largest part of the brain, responsible for higher brain functions such as thought and action.

Fibers

Threadlike structures forming animal or vegetable tissue; in technology, often refers to materials used in making textiles or composites.

Auditory Cortex

The region of the brain that processes auditory information, allowing for the perception of sounds.

Temporal Lobes

Lobes at the sides of the brain’s cerebral cortex; they contain areas involved in hearing, memory, perception, emotion, and (in the left lobe, typically) language comprehension.