CTL (Concrete Testing Lab) borrowed $160,000 for new equipment at 10% per year, compounded quarterly. It is to be paid back over 3 years in equal quarterly payments, How much interest is in the 6th payment? How much principal is in the 6th payment? What principal is owed immediately following the 6th payment? $

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.