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Ten oil tins are taken at random from an automatic filling machine. The mean weight of the tins is 15.8 kg and the standard deviation

Ten oil tins are taken at random from an automatic filling machine. The mean weight of the tins

is 15.8 kg and the standard deviation is 0.5kg. Does the sample mean differ significantly from

the intended weight of 16kgs.

Use 5% level of significance.

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