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Prob. 9-12

Problem 9-12
Lakerio United Bank - Counting & Strapping Errors
Average
Weeks Weekly
on Job Errors
2 11.8
6 13.0
10 13.7
14 13.6
18 8.9
22 11.0
26 13.4
30 11.5
34 8.6
38 9.0
42 2.1
46 2.7
50 3.9
54 3.5
58 3.4
62 4.1
66 3.5
70 2.7
74 3.7
78 4.4

Prob. 9-13

Problem 9-13
ElecktronTech Student Process Times
Student Number Time (minutes) Student Number Time (minutes)
1 16 26 11
2 14 27 18
3 13 28 13
4 14 29 11
5 13 30 17
6 16 31 14
7 18 32 13
8 11 33 19
9 18 34 17
10 10 35 15
11 13 36 17
12 16 37 12
13 12 38 17
14 19 39 16
15 15 40 16
16 18 41 11
17 17 42 13
18 18 43 13
19 19 44 13
20 21 45 18
21 17 46 18
22 13 47 16
23 15 48 10
24 16 49 9
25 13 50 12

Prob. 9-14

Problem 9-14
Packman Shipping Co.
Packer Time Packer Time
Number (minutes) Number (minutes)
1 15 21 15
2 10 22 23
3 11 23 18
4 13 24 20
5 12 25 17
6 14 26 16
7 17 27 18
8 13 28 17
9 16 29 22
10 9 30 13
11 12 31 13
12 16 32 19
13 17 33 19
14 14 34 16
15 18 35 17
16 14 36 20
17 16 37 24
18 12 38 22
19 13 39 21
20 15 40 19

Prob. 9-15

Problem 9-15
Plastic Gear Data for Printwright, Inc.
3.52 3.55 3.55 3.55 3.63
3.58 3.55 3.63 3.55 3.55
3.49 3.50 3.52 3.56 3.53
3.53 3.57 3.58 3.49 3.61
3.52 3.58 3.62 3.52 3.52
3.50 3.58 3.63 3.52 3.52
3.51 3.58 3.55 3.58 3.55
3.54 3.52 3.63 3.58 3.61
3.54 3.55 3.61 3.58 3.61
3.57 3.53 3.63 3.57 3.61
3.57 3.53 3.62 3.57 3.54
3.62 3.53 3.64 3.57 3.54
3.62 3.53 3.65 3.57 3.55
3.62 3.53 3.62 3.54 3.61
3.53 3.53 3.54 3.51 3.54
3.56 3.57 3.56 3.58 3.60
3.56 3.57 3.56 3.58 3.60
3.56 3.57 3.56 3.59 3.60
3.56 3.57 3.56 3.59 3.60
3.57 3.57 3.56 3.59 3.60
3.57 3.57 3.56 3.59 3.60
3.57 3.57 3.56 3.59 3.60
3.57 3.57 3.62 3.59 3.60
3.57 3.57 3.54 3.59 3.60
3.57 3.58 3.62 3.59 3.60
3.57 3.58 3.62 3.59 3.61
3.57 3.58 3.64 3.60 3.52
3.57 3.58 3.62 3.60 3.52
3.57 3.58 3.51 3.60 3.52
3.57 3.58 3.55 3.55 3.52

Prob. 9-16

Problem 13-10
Problem 9-16
Deuce Printing Company-Frequencies of Problems
Error/Delay Cause Frequency
Customer change delays 30
Lack of press time 245
Design department delays 80
Paper not in stock 70
Lack of proper order information 49
Lost order 26
Press setup delays 205
Total defects 705

Prob. 9-17

Problem 9-17
DeltaWidgets Production Data
Production No. of
Rate Defectives
13 9
16 10
20 16
25 17
28 18
32 22
36 25
38 20
41 20
43 12
48 12
50 16
53 11
56 10
59 9

Prob. 9-18

Problem 9-18
Malossdientes Candy Company
Sample Defects
1 2
2 4
3 7
4 6
5 4
6 7
7 3
8 3
9 4
10 3
11 9
12 8
13 9
14 15
15 11
16 2
17 7
18 7
19 8
20 3
21 7
22 1
23 4
24 5
25 8

Prob. 9-19

Problem 9-19
Lauren Elizabeth Apparel Company - Frequency of Customer Complaints
Frequency
Billing errors 995
Shipping errors 2310
Electronic charge errors 5220
Long delays 680
Delivery Errors 795
Total 10000

Prob. 9-20

Problem 9-20
Cabo Fiesta Mexican Restaurant
Breadsticks
Week Orders Margaritas
1 850 1340
2 860 1340
3 790 1300
4 860 1340
5 870 1370
6 790 1240
7 805 1285
8 790 1240
9 740 1170
10 720 1130
11 730 1150
12 685 1070
13 710 1150
14 740 1140
15 635 1030
16 660 990
17 720 1210
18 880 1370
19 880 1400
20 920 1370
21 930 1410
22 840 1240
23 830 1260
24 825 1235
25 790 1260