(Answered) : Five data entry operators work at the data processing department of the Birmingham Bank. Each day for 30​days, the number of d

Five data entry operators work at the data processing department of the Birmingham Bank. Each day for 30​days, the number of defective records in a sample of 350 records typed by these operators has been​ noted, as​ follows:
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Five data entry operators work at the data processing department of the Birmingham Bank. Each day for 30 days, the number of defective records in a sample of 350 records typed by these operators has been noted, as follows Sample No. No. Defectives Sample No. Defectives 16 13 Defectives 12 13 14 15 17 12 12 23 24 25 26 27 28 29