A Manufacturer of Automobile Transmissions Uses Three Different Processes

question 20

Multiple Choice

A manufacturer of automobile transmissions uses three different processes. The management ordered a study of the production costs to see if there is a difference among the three processes. A summary of the findings is shown below. What are the degrees of freedom for the numerator of the F ratio?

• A) 2
• B) 3
• C) 10
• D) 27
• E) None of these statements are true

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Definitions:

Construct Validity

The extent to which a test measures what it claims to be measuring.

Construct Validity

The degree to which a test measures what it claims to be measuring, specifically the ability of a measurement tool to actually measure the theoretical construct it intends to measure.

Criterion-related Validity

The extent to which a test's scores correlate with another measure or outcome that it is theoretically expected to predict.

Content Validity

The degree to which a test or measure reflects the entire range of material it is supposed to be testing.