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A company produces fuel pumps. Those pumps have a mean flow rate of 88 gallons/min with...

A company produces fuel pumps. Those pumps have a mean flow rate of 88 gallons/min with a standard deviation of 12.5 gallons/min. Selecting 10 pumps from a weekly production batch. What is the probability that the average of this group of 10 pumps is between 90.0 and 85.0 gallons/min

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Answer #1

-r(zく0.50596)-p12(-0.7589) o.693 5 58 o 22 3956 -0.4. 69 601 excl by p(z<o-50 596) is calcul atid a NoRMSDIST (2) # using NOR

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