SPC1: ABC Company wants to determine process control charts for a machine that cuts the paper for textbook height. The following table shows the first 6 samples of 5 books (each sample) of the production of the text. a. What are the upper and lower control limits for the X chart? Answers must be accurate to at least 4 decimal places. b. What are the upper and lower control limits for the R chart? Answers must be accurate to at least 4 decimal places. SPC2: After each car comes off the assembly line it is checked for various defects. 11 cars that come off the line are checked and the number of defects for each car is shown below. Construct the appropriate control chart calculations for the observations listed below, using 3 sigma (i.e., z=3 ). 11 Determine the upper and lower control limits. First, determine which control chart to use. SPC3: A process has a known defective rate of 0.3%. What are the upper and lower control limits (use z=3 ) if you use a sample of 200 ? First, determine which control chart to use