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:
Illusory Correlation
refers to the cognitive bias where a relationship between two variables is perceived to exist when no such relationship actually exists.
Double-Blind Procedure
A experimental setup in which neither the participants nor the experimenters know who is receiving a particular treatment, preventing bias in the results.
Illusory Correlation
The cognitive bias of perceiving a relationship between two variables even when no such relationship exists.
Placebo Effect
A phenomenon in which a person experiences a physiological or psychological improvement after receiving a treatment with no therapeutic value.
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Q130: Referring to Table 10-4, there are _
Q139: Referring to Table 14-8, the F test
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Q208: Referring to Table 10-12, the same decision