The Only Time the Population Size Is Important in the Calculation

question 40

Multiple Choice

The only time the population size is important in the calculation of sample size is:

• A) always; all formulas include N, a count of the total population
• B) when the population is very, very large
• C) when the population is not normal
• D) when the level of accuracy needs to be less than plus or minus 5 percent
• E) when the population is small, relative to the sample size

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Definitions:

GABA

Gamma-Aminobutyric Acid, a neurotransmitter in the brain that plays a key role in regulating nerve excitability and muscle tone.

Neurotransmitter

Chemical substances that transmit signals across a synapse from one neuron to another in the brain or body.

Inhibitory

Referring to a process that decreases the likelihood of a neuron firing and transmitting its signal to other neurons.

Excitatory

Pertaining to or causing excitation, often referring to neurotransmitters or synaptic inputs that increase the likelihood of a neuron firing an action potential.