Question: Whole Grains Inc. uses statistical process control to ensure that its health-conscious, low-fat, multigrain sandwich loaves have the proper weight. Based on periodic process sampling,

Whole Grains Inc. uses statistical process control to ensure that its health-conscious, low-fat, multigrain sandwich loaves have the proper weight. Based on periodic process sampling, the following observed weights (in ounces) were recorded:

Sample 1

Sample 2

Sample 3

Sample 4

Sample 5

Sample 6

Loaf # 1

5.22

5.94

6.18

4.74

5.70

4.98

Loaf # 2

6.84

5.94

7.02

6.12

6.30

5.94

Loaf # 3

5.52

6.48

6.24

5.88

6.60

6.12

Loaf # 4

5.40

6.60

6.30

4.50

4.50

6.30

Provide the following values: X-double bar = R-bar = You are asked to compute 3 control limits for X-bar and Range charts. Provide the following values: A2 = D3 = D4 = For X-bar Chart, LCL = UCL = For R-Chart, LCL = UCL = Is the process under control? (Enter YES or NO):

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