ags of chocolate candy are sampled to ensure proper weight. Overall average for the sample is 36 ounces. Each sample contains 12 bags. The average range is 1.3 ounces. What is the upper control chart limit for average would be?
Bags of tea are sampled to ensure proper weight. Overall average for the samples is 8 ounces. Each sample contains 10 bags. Average range is 0.1 ounces. What is the lower limit of the average chart?
The average range of a process for packaging cereal is 1.1 ounces. If the sample size is 10, find upper control chart limit for the range chart. Given same problem, find lower control.Defects in computer hard drives will usually render entire computer worthless. For a particular model, the percent defective in the past has been 1%. If sample size of 400 is taken, what would be 95.5% lower control limit be?