You want to develop a three-sigma R-chart. You know the average range is 12 based on
several samples of size 6. Which of the following is the resulting LCL?
___________________________________
You have run a capacity resource profile on your shop. Products have been routed
sequentially through resources A, B, C, and D. The capacity resource profile tells you
that resource A is scheduled at 95 percent of capacity, resource B at 80 percent of
capacity, resource C at 130 percent of capacity, and resource D at 100 percent of
capacity. Assuming that the data we used to calculate the capacity resource profile are
accurate, how would you employ the “drum, buffer, rope” thinking?
You are developing an X-bar chart based on sample means. You know the standard
deviation of the sample means is 4, the desired confidence level is 99 percent, and the
average of the sample means is 20. What is your LCL?