17) Ten samples with five observations each have been taken from the Beautiful Shampoo Company plant in order to test for volume dispersion in the shampoo bottle-filling process. The average sample range was found to be 0.5 ounces. Develop control limits for the sample range. (Round answers to 3 decimal places, e.g. 15.250.)

CL		enter the control limit rounded to 3 decimal places
UCL		enter the upper control limit rounded to 3 decimal places
LCL		enter the lower control limit rounded to 3 decimal places

19) A production manager at a Contour Manufacturing plant has inspected the number of defective plastic molds in five random samples of 10 observations each. Following are the number of defective molds found in each sample:

Sample		Number of Defects		Number of Observations in Sample
1		2		10
2		1		10
3		3		10
4		1		10
5		1		10
Total		8		50

Construct a 3-sigma control chart (z = 3) with this information. (If the lower control limit is negative, round the LCL to zero and all other answers to 2 decimal places, e.g. 15.25.)

CL		enter control limit rounded to 2 decimal places
UCL		enter upper control limit rounded to 2 decimal places
LCL		enter lower control limit rounded to 2 decimal places