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Question: a manufacturer of banana chips would like to know whether...

Question details

A manufacturer of banana chips would like to know whether its bag filling machine works correctly at the 443 gram setting. It is believed that the machine is underfilling the bags. A 22 bag sample had a mean of 435 grams with a standard deviation of 14. Assume the population is normally distributed. Is there sufficient evidence at the 0.020 level that the bags are underfilled?

There is not sufficient evidence to support the claim that the bags are underfilled.

OR

There is sufficient evidence to support the claim that the bags are underfilled.

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