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A machine used to fill gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 127 ounces and a

A machine used to fill gallon-sized paint cans is regulated so that the amount of paint dispensed has a mean of 127

ounces and a standard deviation of 0.30 ounce. You randomly select 40 cans and carefully measure the contents. The sample mean of the cans is 126.9 ounces. Does the machine need to be reset? Explain the reasoning.

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