Filling machine in a brewery

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A filling machine in a brewery is designed to fill bottles with 355 ml of hard cider. In practice, however, volumes vary slightly from bottle to bottle. In a sample of 49 bottles, the mean volume of cider is found to be 354 ml, with a standard deviation of 3.5 ml.

At a significance level of 0.01, which conclusion can the brewer draw?

Reference no: EM1399092

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