QUESTION 28

Problem C: Use the following to answer questions 28-29:

A quality analyst wants to construct control charts for controlling a packaging process. Each day last week, he randomly selected four packages and weighed them. The data from that activity appears below.

	Weight
Day	Monday	Tuesday	Wednesday	Thursday	Friday
Package 1	23	23	21	18	22
Package 2	22	21	19	20	17
Package 3	24	21	20	20	22
Package 4	23	19	20	19	20

The upper and lower control limits for the means are:

		A) UCL = 22.64; LCL = 18.56
		B) UCL = 22.88; LCL = 18.51
		C) UCL = 23.033; LCL = 18.367
		D) UCL = 21.0; LCL = 17.0
		E) UCL = 22.98; LCL = 18.02

QUESTION 29

The upper and lower control limits for the Range are:

		A) UCL = 6.846; LCL = 0
		B) UCL = 7.25; LCL = -5.2
		C) UCL = 7.759; LCL = 0
		D) UCL = 6.389; LCL = 0.0
		E) UCL = 7.302; LCL = 0