Statistics Homework - Due 3/13/13 by 4pm

Assignment 2 Grading Criteria

Maximum Points

Using the data provided created Xbar and R charts.

15

Set control limits for the weights of the boxes.

15

Established the criteria for nonrandom patterns or trends, if any.

15

Stated whether the process is in control, according to the limits and the criteria established in b and c above.

15

Suggested the appropriate action if the process is not in control.

15

Gave valid and supported reasons for their answer.

15

Used correct grammar, spelling, and word choice and cited all sources using correct APA style.

10

Total:

100

Note: The following consists of 12 sets of three box weights in ounces

N

#1

#2

#3

StdDev

Xbar

1

6.3

6.28

6.26

0.02

6.28

2

6.32

6.32

6.33

0.005773503

6.323333333

3

6.29

6.33

6.36

0.035118846

6.326666667

4

6.3

6.29

6.34

0.026457513

6.31

5

6.295

6.315

6.39

0.050083264

6.333333333

6

6.292

6.319

6.33

0.019553346

6.313666667

7

6.289

6.323

6.4

0.0568712

6.337333333

8

6.286

6.327

6.471

0.097161378

6.361333333

9

6.283

6.331

6.498

0.112855365

6.370666667

10

6.28

6.335

6.525

0.128549601

6.38

11

6.277

6.339

6.39

0.056589163

6.335333333

12

6.274

6.343

6.4

0.063095166

6.339