A Population That Consists of 250 Items Has a Mean

question 14

Multiple Choice

A population that consists of 250 items has a mean of 37 and a standard deviation of 13. A sample of size 5 is taken at random from this population. The standard error of the sample mean equals (up to three decimal places) :

• A) 1.838 .
• B) 1.648 .
• C) 0.822 .
• D) 2.715 .

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Definitions:

Conditioned Stimulus

An originally neutral stimulus that, after association with an unconditioned stimulus, comes to trigger a conditioned response.

Unconditioned Response

An unconditioned response is an automatic, natural reaction to a stimulus, which does not require prior learning to occur.

Ivan Pavlov

A Russian physiologist known for his work on classical conditioning, demonstrating how organisms learn through association.

Unconditioned Response

A natural, automatic reaction to a stimulus that does not require learning to take place.