The Owner of a Fish Market Has an Assistant Who

question 39

Multiple Choice

The owner of a fish market has an assistant who has determined that the weights of catfish are normally distributed, with mean of 3.2 pounds and standard deviation of 0.8 pound. If a sample of 64 fish yields a mean of 3.4 pounds, what is probability of obtaining a sample mean this large or larger?

• A) 0.0228
• B) 0.0013
• C) 0.0001
• D) 0.4987

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Definitions:

Test-retest Reliability

Test-retest reliability is a measure of consistency where the same test is administered to the same group of people at different times to assess the reliability over time.

Construct Validity

The extent to which a test or instrument accurately measures the theoretical, non-observable constructs it is designed to assess.

Predictive Validity

The degree to which a measurement or test score forecasts future results on a connected outcome.

Concurrent Validity

A measure of how well a particular test predicts outcomes based on comparison with other measures that are administered at the same time.