The density of a plastic
The density of a plastic part used in a cellular telephone is required to be at least 0.70 g/cm3. The parts are supplied in large lots, and a variables sampling plan is to be used to sentence the lots. It is desired to have p1 =0.02,p2 =0.10, α?=0.10, and β=0.05. The variability of the manufacturing process is unknown but will be estimated by the sample standard deviation.
(a) Find an appropriate variables sampling plan
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01 Feb 2018