Answers for Applied Statistics: Regulation a Kind of Steel Should Weight

Answers for Applied Statistics: Regulation a Kind of Steel Should Weight for $3 Only (Instant Download)

Steel

According to the regulation a kind of steel should weight 185 kg if five pieces randomly selected from different productions have weights 171.6 , 191.8 , 178.3 , 184.9 and 189.1 kg test the null hypothesis which says the population mean is equal to 185 kg against the alternative hypothesis which says population mean is lower than 185 kg at the 5% level of significance.

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