Question

EK Chemical Company sells a specialty formulated compound that contains an active ingredient X. Such compound is packed in packages marked to have 19 mg of X. In reality, EK has set the mean content of X at 0.8 mg off the marked specification, and the process currently has a standard deviation of 1.2 mg. Suppose the customer will accept any boxes as long as the content of X is anywhere between +/- 2.7 from the specification of 19 mg but not exceeding the upper tolerance limit. Of the two process capability index values (i.e. the LHS and RHS ratios), what is the appropriate numeric value that is relevant in this case?

Answer 1