(Answered) A machine is designed to fill jars with 16 oz of coffee a

Statistics

A machine is designed to fill jars with 16 oz. of coffee. A consumer suspects that the machine is not filing the jars completely. A sample of 8 jars has a mean of 15.6 oz. and a standard deviation of 0.3. Is there enough evidence to support the consumer's conjecture at a ? = 0.05?

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