Create C-Charts. -A Producer of Specialty Products Uses a Variety of Natural

Create c-charts.
-A producer of specialty products uses a variety of natural and man-made materials to
Make unique countertops for kitchens and baths. One product line mixes concrete and
Natural river stone to make countertops that are polished to a high shine revealing unique
Patterns. Occasionally coarse sand will result in undesirable pitting and rough spots on
Surfaces. Consequently, as part of its quality control efforts, 8 by 4 foot polished slabs
Are checked periodically for imperfections. For each slab inspected the number of
Imperfections (pits, rough spots, etc.) is recorded. If the average number of imperfections
Per 8 by 4 foot polished slab is 2.6, the control limits for the appropriate control chart are

A) 0 and 7.44
B) 0.98 and 4.21
C) 0 and 9.89
D) 1.24 and 3.96
E) None of the above