Mathematics, 19.08.2020 19:01 kmontello5

A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 445 gram setting. It is believed that the machine is underfilling the bags. A 12 bag sample had a mean of 442 grams with a standard deviation of 20. A level of significance of 0.05 will be used. Assume the population distribution is approximately normal. State the null and alternative hypotheses.

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A manufacturer of chocolate chips would like to know whether its bag filling machine works correctly...