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Find average weight of the items

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You want to investigate the average weight of 1000 items in a lot, so 40 of them are randomly chosen, weighed and X = 252g with S = 5 are obtained.

A) means that the average weight of the 1000 items is 252: it means that the average weight of the items is 252.

B) Most items weigh 252 grams? Not necessarily, unless 252 is the fashion.

C) Of the forty items in the sample, some can weigh 300g? Yes.

Reference no: EM132848953

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