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tiny-mole [99]
3 years ago
5

Pvc pipe is manufactured with a mean diameter of 1.01 inch and a standard deviation of 0.003 inch. find the probability that a r

andom sample of n = 9 sections of pipe will have a sample mean diameter greater than 1.009 inch and less than 1.012 inch

Mathematics
2 answers:
Tema [17]3 years ago
5 0
The probability that the sample mean is within 2 standard deviations on the high side and 1 standard deviation on the low side is about 0.8186.

Elodia [21]3 years ago
4 0

Answer:   7.517 inches

Hope I was helpful! (:

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