Question

The net weight (in oz) of a dry bleach product is to be monitored by x and R control charts using a sample size of n = 5. Data for 20 preliminary samples are shown in Table 6E.7.
(b) Estimate the process mean and standard deviation.
(c) Does the fill weight seem to follow a normal distribution?
(d) If the specifications are at 16.2  0.5, what conclusions would you draw about process capability?
(e) What fraction of containers produced by this process is likely to be below the lower specification limit o 15.7 oz?


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  • CreatedNovember 06, 2015
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