Multiple Choice
Consider the following to answer the question(s) below:
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 electrical components manufactured by the entire company. The Quality Control Department plans to check a random sample of the over 10,000 electrical components manufactured across all divisions.
-Based on the 95% confidence interval, should the Quality Control Department conclude that the percentage of rework for the electrical components is lower than the rate of 12% for non-electrical components?
A) Yes, because the lower limit of the confidence interval is 7.42%.
B) Yes, because 12% is contained within the 95% confidence interval.
C) No, because 12% is contained within the 95% confidence interval.
D) Yes, because the upper limit of the confidence interval is 13.02%.
E) Yes, because 12 is larger than the width of the confidence interval.
Correct Answer:

Verified
Correct Answer:
Verified
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