A candy bar manufacturer desires to set up a variables

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Reference no: EM1317482

To draw the 3-sigma X-bar chart and R-chart parameters.

A candy bar manufacturer desires to set up a variables control chart for the net weight of its candy bars. It is not exactly clear what charts should be used. A total of 60 candy bar weights (in grams) were obtained and are displayed in the following table.

Sample Number

Candy Bar 1

Candy Bar 2

Sample Number

Candy Bar 1

Candy Bar 2

1

62.671

61.740

16

61.228

62.239

2

62.246

62.381

17

62.305

61.37

3

61.545

59.456

18

61.286

61.483

4

62.233

61.409

19

61.557

61.477

5

59.108

61.664

20

62.147

61.476

6

61.415

60.276

21

62.333

61.675

7

61.872

61.979

22

60.608

63.635

8

62.197

61.308

23

60.907

60.126

9

60.603

61.228

24

60.89

60.231

10

62.007

61.305

25

63.044

60.430

11

61.171

59.542

26

60.677

61.664

12

62.323

61.751

27

61.284

62.112

13

60.707

61.921

28

60.343

61.068

14

62.467

60.445

29

61.42

61.122

15

59.711

60.881

30

62.146

60.837

a.      Set up the 3-sigma X-bar chart and R chart parameters, centerline, and the control limits (n=2).

Reference no: EM1317482

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