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 expected cell frequency for the Procedure A/Clear cell is ________.
Definitions:
Interest Rate
The percentage charged by lenders to borrowers for the use of money, typically expressed at an annual rate.
Economic Profit
The difference between total revenues earned by a firm and its total opportunity costs.
Investment Return
The increase or decrease in the value of an investment during a certain period, represented as a percentage of the original investment's price.
Annual Interest Rate
The percentage of a sum of money charged for its use per year.
Q1: Referring to Table 10-12, the hypotheses that
Q9: Referring to Table 11-3, what is the
Q12: Referring to Table 11-8, the among-block variation
Q36: Referring to Table 12-19, the calculated value
Q88: Referring to Table 12-3, the test will
Q95: Referring to Table 11-3, what is the
Q107: The sample size in each independent sample
Q114: Referring to Table 11-11, what was the
Q194: Referring to Table 10-13, what is the
Q196: Referring to Table 13-4, set up a