The Sample Size Needed to Provide a Margin of Error

question 27

Multiple Choice

The sample size needed to provide a margin of error of 3 or less with a .95 probability when the population standard deviation equals 11 is

• A) 10.
• B) 11.
• C) 51.
• D) 52.

Apply discounted cash flow techniques in evaluating long-term projects.

Understand the basic neurological processes involved in neurotransmission, including depolarization, hyperpolarization, and synaptic transmission.

Recognize the role of specific neurotransmitters in psychological functions and disorders.

Grasp the structural and functional characteristics of neurons and how they contribute to the nervous system's operation.

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Definitions:

Standard Deviation

A measure of the dispersion or spread of a set of numbers, indicating how much deviation exists from the mean of the dataset.

Standard Error

Standard error measures the accuracy with which a sample distribution represents a population, using the standard deviation of the sample means.

Infinite Population

A theoretical concept where the population size is considered to be limitless for the purposes of statistical analysis.

Standard Deviation

A statistical measurement that quantifies the amount of variation or dispersion of a set of values.