The Standard Error of the Mean for a Sample of 100

question 147

Multiple Choice

The standard error of the mean for a sample of 100 is 25.In order to cut the standard error of the mean in half (to 12.5) we must:

• A)increase the sample size to 200.
• B)decrease the sample size to 50.
• C)keep the sample size at 100 and change something else.
• D)None of these choices.

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Definitions:

Hypothalamus

A small region of the brain responsible for regulating physiological processes such as temperature regulation, hunger, thirst, and sleep cycles.

Hormones

Biochemical substances produced by glands in the endocrine system that regulate physiological activities by traveling through the bloodstream to target organs.

Nervous System

The complex network of nerves and cells that transmit signals between different parts of the body, allowing for communication and coordination of bodily functions.

Bloodstream

The flowing body fluid that circulates throughout the body, carrying oxygen and nutrients to cells and removing waste products.