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Mathematics, 25.03.2021 19:30 Jana1517
The batteries produced in a manufacturing plant have a mean time to failure of 30 months with a standard deviation of 2 months. I select a simple random sample of 400 batteries produced in the manufacturing plant. I test each and record how long it takes for each battery to fail. I then compute the average of all the failure times. The sampling distribution of is approximately:
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The batteries produced in a manufacturing plant have a mean time to failure of 30 months with a stan...
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