Essay
Lifetime of Fluorescent Light Bulbs
The mean lifetime of a fluorescent light bulb is 1570 hours with a standard deviation of 200 hours. Suppose we take a sample of 100 bulbs, test them, and calculate the sample mean.
-Refer to Lifetime of Fluorescent Light Bulbs. What is the probability the sample mean exceeds 1560 hours?
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> 1560) = P(z > ...View Answer
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Correct Answer:
Verified
> 1560) = P(z > ...View Answer
Unlock this answer now
Get Access to more Verified Answers free of charge
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