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

2. A Six Sigma analyst at Lakerio United Bank suspected that errors in counting and manually strapping cash into bundles were related to the number of weeks that employees had been employed on that job. The data available in the worksheet Prob. 9-12 were gathered from the process. What do you conclude from your analysis? What do you recommend