A Quality Control Manager at a Plant That Produces O-Rings

question 29

Multiple Choice

A quality control manager at a plant that produces o-rings is concerned about whether the diameter of the o-rings that are produced is conformable to the specification.She has calculated that the average diameter of the o-rings is 4.2 centimeters.She also knows that approximately 95% of the o-rings have diameters fall between 3.2 and 5.2 centimeters and almost all of the o- rings have diameters between 2.7 and 5.7 centimeters.When modeling the diameters of the o- rings,which distribution should the scientists use?

• A)Uniform distribution
• B)Binomial distribution
• C)Normal distribution
• D)Exponential distribution

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