If 15 Workers Produce 100 License Plates, 16 Workers Produce

question 121

Multiple Choice

If 15 workers produce 100 license plates, 16 workers produce 120 license plates, and 17 workers produce 130 license plates, then

• A)diminishing marginal returns have not set in because the marginal product is positive
• B)the marginal product of the seventeenth worker is 130
• C)diminishing marginal returns must begin with the sixteenth worker
• D)the marginal product of the sixteenth worker is greater than the marginal product of the seventeenth worker
• E)the marginal product of the fifteenth worker must be 20

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Definitions:

Achievement Test

A type of ability test that measures what one has learned. Types of achievement tests include survey battery tests, diagnostic tests, and readiness tests.

Percentiles

A measure that indicates the value below which a given percentage of observations in a group of observations falls.

Stanines

Derived from the term “standard nines,” this is a standardized score frequently used in schools. Often used with achievement tests, stanines have a mean of 5 and a standard deviation of 2, and range from 1 to 9.

T-scores

Standardized scores with a mean of 50 and a standard deviation of 10, used to compare an individual's score against a normative sample.