Unformatted text preview: The accounts receivable department at Rick Wing Manufacturing has been having difﬁwlty getting customers to pa).r the ﬁll] amount of their bills. Man).r customers complain that the bills
are not correct and do not reﬂect the materials that arrived at their receiving docks. The department has decided to implement SPC in its billing process. To set up control charts, 10 samples of 100 bills each were taken over a month‘s time and the items on the bills checked against the bill of lading sent by the company‘s shipping department to determine the number
ofbills that were not correct. The results were: %
Sample No. 1 2 3 4 5 6 I" 8 9 10 No. of Incorrect Bills 9 2 14 I 3 2 3 4 9 0 a) The value ofmean swim defective (5) = (enter your response as a ﬁ'ocﬁon between 0 and I, rounded to four deoimlplaces}. ...
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- Fall '10