Mathematics, 25.08.2021 05:00 misslux
The manager of the customer service department of Data Tech Credit Card Service Company is concerned about the number of defects produced by the billing process. Every day a random sample of statements was inspected for errors regarding incorrect entries involving account numbers, transactions on the customer's account, interest charges, and penalty charges. Any statement with one or more of these errors was considered a defect. The study lasted 30 days and yielded the data in the table below: LOADING... Samples Number of Errors in Sample of 110 1120 2130 a. Construct a p-chart for the billing process. Set up the p-chart by specifying its control limits and center line. (Enter your responses rounded to four decimal places. If your answer for is negative, enter this value as 0.) . 0610 . 0292 0 b. Is there any nonrandom behavior in the billing process that would require management attention? A. Yes, and management would like to repeat whatever was done when samples were taken and to avoid what was done during samples . B. Yessamples have an upward run and samples have a downward run. C. Since of the data points are within the control limits then, by definition, there is not any nonrandom behavior in the billing process. D. There are not enough samples to determine whether there is any nonrandom behavior in the billing process.
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The manager of the customer service department of Data Tech Credit Card Service Company is concerned...
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