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One division of a large defense contractor manufactures telecommunication equipm

ID: 2948696 • Letter: O

Question

One division of a large defense contractor manufactures telecommunication equipment for the military. This division reports that 12% of non-electrical components are reworked. Management wants to determine if this percentage is the same as the percentage rework for the company’s electrical components. The Quality Control Department plans to check a random sample of the over 10,000 electrical components manufactured across all divisions. The 95% confidence interval based on this data is .0758 to .1339. Should management conclude that the percentage of rework for electrical components is lower than the rate of 12% for non-electrical components?

No, because 12% is contained with the 95% confidence interval.

Yes, because 12% is contained with the 95% confidence interval

Yes, because the lower limit of the confidence interval is 7.6%.

No, because the upper limit of the confidence interval is 13.4%

A.

No, because 12% is contained with the 95% confidence interval.

B.

Yes, because 12% is contained with the 95% confidence interval

C.

Yes, because the lower limit of the confidence interval is 7.6%.

D.

No, because the upper limit of the confidence interval is 13.4%

Explanation / Answer

Ans :  

No, because 12% is contained with the 95% confidence interval.

  

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