Mathematics, 04.05.2021 18:30 ramenbates81

A manufacturer of potato chips would like to know whether its bag filling machine works correctly at the 444 gram setting. It is believed that the machine is underfilling the bags. A 9 bag sample had a mean of 441 grams with a standard deviation of 25. A level of significance of 0.025 will be used. Assume the population distribution is approximately normal. Required:
Is there sufficient evidence to support the claim that the bags are underfilled?

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