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

question 136

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, what is the value of the critical range for the Marascuilo procedure to test for the difference in proportions between procedure A and procedure B using a 0.05 level of significance?

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Definitions:

Total Obligations

The sum of a borrower's current and long-term financial responsibilities.

Past Transactions

Completed financial activities or events that have occurred in the past and have been recorded in the accounting records.

Basic Earnings Per Share

A measure of a company's profitability on a per-share basis, calculated by dividing net income by the number of outstanding ordinary shares.

Weighted Average

A calculation that takes into account the varying degrees of importance of the numbers in a data set, assigning weights to each number.