g Kristina invests a total of $13,000 in two accounts paying 7% and 12% annual interest, respectively. How much was invested in each account if, after one year, the total interest was $1,310.00.

Statistical process control charts: a. indicate to the operator the true quality of material leaving the process. b. display upper and lower limits for process variables or attributes and signal when a process is no longer in control. c. indicate to the process operator the average outgoing quality of each lot. d. display the measurements on every item being produced. e. are a graphic way of classifying problems by their level of importance, often referred to as the 80-20 rule.