An airline serves bottles of Galena Spring Water

Question
An airline serves bottles of Galena Spring Water that are supposed to comprehend an mediocre of 10 ounces. The filling order follows a typical arrangement. In a illustration of 12 randomly clarified bottles, the average efficacy was 10.016 ounces and the scale irregularity was 0.059 ounces. Test whether there is a disposition manage permutation using ? = 0.05.

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