In a Random Sample of Patient Records in Cutter Memorial

question 94

Multiple Choice

In a random sample of patient records in Cutter Memorial Hospital, six-month postoperative exams were given in 90 out of 200 cases, while in Paymor Hospital such exams were given in 110 out of 200 cases. The pooled proportion is:

• A).50
• B).40
• C).30
• D).20

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Definitions:

Litters

Groups of young animals born to an animal at one time or the act of discarding trash inappropriately in the environment.

Wilcoxon Signed Rank Test

A statistical test that doesn't assume a specific distribution, designed to analyze two related samples, matched pairs, or repeated observations on a single subject, aiming to determine if there's a significant difference in the average ranks of their populations.

Level Of Significance

The criterion used for rejecting the null hypothesis, a measure of how strong the evidence must be to conclude that there is a significant effect.

Ranking

The assignment of positions or grades to individuals or items in a group, based on a comparison of their attributes or achievements.