A National Manufacturer of Ball Bearings Is Experimenting with Two

question 44

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.Assume that the population standard deviations are equal. What is the degrees of freedom?

• A)10
• B)13
• C)26
• D)24

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Definitions:

Capacity

The maximum load that an organizational unit can carry or operate.

Commercial Brewery

A business that produces beer on a large scale, often incorporating various brewing techniques and marketing strategies to distribute products to a wider market.