Essay
Battery Lifetime Narrative
The lifetime of a particular type of battery is normally distributed with a mean of 1100 days and a standard deviation of 80 days. The manufacturer randomly selects 400 batteries of this type and ships them to a tire retailer.
-Refer to Battery Lifetime Narrative. What is the mean and standard deviation of the sampling distribution of 
?
Correct Answer:
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The mean is 
1100, a...View Answer
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Correct Answer:
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1100, a...View Answer
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