Question: Problem 4: A manufacturing process produces light bulbs. The average number of defective light bulbs in a sample of 500 is known to be 3.2.

Problem 4: A manufacturing process produces light

Problem 4: A manufacturing process produces light bulbs. The average number of defective light bulbs in a sample of 500 is known to be 3.2. a) Suppose the manufacturer considers the upper control limit to be three standard deviations above the mean. How many defective light bulbs in a sample of 500 would that be? b) Suppose the manufacturer considers the lower control limit to be three standard deviations below the mean. How many defective light bulbs in a sample of 500 would that be

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