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

question 21

True/False

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, there is sufficient evidence to conclude that the proportions between procedure C and procedure D are different at a 0.05 level of significance.

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Definitions:

Genetic Differences

Variations in the DNA sequences among individuals that contribute to biological diversity within a species.

Variance

A statistical measure of the dispersion of data points in a data set, indicating how far each data point is from the mean.

Population

In biology, it refers to all the organisms of the same group or species who live in a particular geographical area and are capable of interbreeding.

Monozygotic Twins

Twins that result from the division of a single fertilized egg and share all of their genetic material, often referred to as identical twins.