A National Manufacturer of Ball Bearings Is Experimenting with Two

question 40

Multiple Choice

A national manufacturer of ball bearings is experimenting with two different processes for
Producing precision ball bearings. It is important that the diameters be as close as possible to an
Industry standard. The output from each process is sampled and the average error from the industry
Standard is calculated. The results are presented below:
The researcher is interested in determining whether there is evidence that the two processes yield
Different average errors.
This example is what type of test?

• A) One sample test of means.
• B) Two sample test of means.
• C) Paired t-test.
• D) Test of proportions.

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Definitions:

Listening

The active process of receiving and understanding messages communicated by others, involving attention and interpretation.

Talking

The act of conveying thoughts, feelings, or information through verbal language.

Eye Contact

The act of looking directly into another person's eyes, which can communicate various emotions and intentions.

Kinesics

Study of human movement and gesture.