Question: Testing light bulbs for longevity. Since such testing destroys the product, only a small sample of a manufacturers total output of light bulbs can be

Testing light bulbs for longevity. Since such testing destroys the product, only a small sample of a manufacturer’s total output of light bulbs can be tested for longevity. The statistic is the mean lifetime as computed from the sample. The parameter is the actual mean lifetime of all light bulbs produced.

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