Quality engineers at an industrial fastener company, Tighten Up, are responsible

Question

Quality engineers at an industrial fastener company, Tighten Up, are responsible for assessing product quality. One product of interest is a certain type of bolt produced in the tens of thousands and sold to auto manufacturers and their suppliers across the country. To assess the quality of the current shipment of 10,000 bolts being sent to My Motors, inspectors obtain 150 bolts from the shipment and subject them to various quality tests and measurements to determine thread pitch, which is the distance from one thread groove to the next, measured from crest to crest. What is the population for the current shipment to My Motors? A. Tens of thousands of bolts B. Sample of 150 bolts C. Any shipment of 10,000 bolts D. Current shipment of 10,000 bolts

Explanation / Answer

Since this entire test is to assess the quality of 10000 bolts which are being sent to My Motors, the population for this is:

Current shipment of 10,000 bolts

Option D is correct.

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