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Mathematics, 28.01.2020 21:51 toxsicity

Amanufacturer of chocolate chips would like to know whether its bag filling machine works correctly at the 439.0 gram setting. it is believed that the machine is underfilling the bags. a 47 bag sample had a mean of 433.0 grams. a level of significance of 0.05 will be used. determine the decision rule. assume the standard deviation is known to be 21.0. enter the decision rule.

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