Question: 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.

A quality analyst wants to construct control
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. Day Package 1 Package 2 Package 3 Package 4 Monday 23 22 24 23 Tuesday 23 21 21 Weight Wednesday Thursday 21 18 19 20 19 19 22 19 Friday 22 18 22 20 30. 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 31. 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

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