Five data entry operators occupational at the information handling department of the Georgia Bank. Each day for 30 days, the variety of defective records in a sample of 250 records typed by these operators has actually been detailed, as follows:

 Sample No.You are watching: B) why can the lower control limit not be a negative number? Sample No. Sample No. No. Defective No. Defective No. Defective 1 7 11 18 21 17 2 5 12 5 22 12 3 19 13 16 23 6 4 10 14 4 24 7 5 11 15 11 25 13 6 8 16 8 26 10 7 12 17 12 27 4 8 9 18 4 28 6 9 6 19 6 29 12 10 13 20 16 30 3

a) Establish 3s- upper and lower manage borders.

b) Why can the reduced control limit not be a negative number?

c) The sector standards for the top and lower manage boundaries are 0.10 and also 0.01, respectively. What does this suggest about Georgia Bank's own standards?

Jan 28 2021 07:13 AM

a. 3s upper limits = suppose + 3 x S.D. = 9.67 + 3 x 4.54 =23.29 3s lower limit = 9.67 - 3 X 4.54 = 0 (cant be much less than 0 ) b. lower limit cant be an adverse number because any kind of information number favor defects cant be negative c. Upper regulate limits is 0.10 so upper limit = 9.67 + 1.645 x 4.54 =17.13 < p value for 90% confidence level = 1.65> Lower...
l borders is 0.01 so lower limit = 9.67 + 2.58 x 4.54 = 0 < p value for 99% confidence level = 2.58> so Georgia Bank's very own standards is rather equivalent to industries standerds because just 2 times it acquire failed out of 30 events.
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