Engineering, 26.11.2019 05:31 scastillo8

Aplant manager is concerned her equipment may need recalibrating. it seems that the actual weight of the 15 oz. cereal boxes it fills has been fluctuating. the standard deviation should be at most 0.5 oz. in order to determine if the machine needs to be recalibrated, 88 randomly selected boxes of cereal from the next day's production were weighed. the standard deviation of the 88 boxes was 0.52. does the machine need to be recalibrated? conduct a hypothesis test at the 5% level.

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Aplant manager is concerned her equipment may need recalibrating. it seems that the actual weight of...

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