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SCENARIO 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:
Procedure
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 Scenario 12-5,there is sufficient evidence to conclude that the proportions between procedure A and procedure C are different at a 0.05 level of significance.
Frequency Distribution
A mathematical function showing the number of occurrences of each value in a dataset.
Alabama
A state located in the southeastern region of the United States, known for its rich history and diverse cultural heritage.
Frequency Histogram
A graphical representation of data that shows the number of observations within specific intervals, presenting the distribution of a data set.
Classes
Categories into which data, objects, or individuals are grouped based on similar characteristics or criteria.
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