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When Determining the Sample Size Needed for a Proportion for a Given

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When determining the sample size needed for a proportion for a given level of confidence and sampling error,the closer to 0.50 that p is estimated to be:


Definitions:

Leukemia

A type of cancer that affects the blood and bone marrow, characterized by an overproduction of abnormal white blood cells.

Sigmoidoscopy

A medical examination of the sigmoid colon by means of a flexible tube inserted through the anus to check for cancer, polyps, and other anomalies.

Gastroscopy

A diagnostic procedure that involves using a gastroscope to visually examine the interior of the stomach.

Colonoscopy

A medical procedure using a camera to examine the interior lining of the colon and rectum.

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