Five data entry operators work at the data processing department of the Georgia Bank. Each day for 30 days, the number of defective records in a sample of 250 records typed by these operators has been noted, as follows:

(a) Establish 3σ upper and lower control limits.
(b) Why can the lower control limit not be a negative number?
(c) The industry standards for the upper and lower control limits are 0.10 and 0.01, respectively. What does this imply about Georgia Bank€™s ownstandards?

Transcribed Image Text:

7267304623 67890 22223 8564-82466 1 2 3 4 5 6 7 8 9 0 7 5 9 0 182963 an N 1 2 3 4 5 6 7 8 9 0