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Top Billers processes invoices for business clients. Lately, Top Billers has been getting complaints about errors in...

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Operations Management

Top Billers processes invoices forbusiness clients. Lately, Top Billers has been getting complaintsabout errors in the invoices they have processed. The qualitymanager for Top Billers decides to select one client at random eachday and sample all of that client’s invoices to measure the extentof the problem.

a)   If the manager decidesto construct a u-chart, what values will be used for thecenter line, lower control limit, and the minimum and maximumvalues of the upper control limit of the control chart?

b)   Create the controlchart.

c)   Does the process appearto be in statistical control? Why or why not?

d)   What conclusion can bedrawn about the overall quality of the service Top Billersoffers?

No. of InvoicesNo. of Invoices
SampleReviewedWith Errors
11712
21941
31213
42000
51591
61623
71864
81821
91552
101852
111794
121603
131591
141541
151512
161690
171893
181784
191612
201981
211741
221202
231523
241664
251823
261852
271615
281291
291704
301431

Answer & Explanation Solved by verified expert
4.2 Ratings (681 Votes)
au bar 00132SampleReviewed nWith Errors cDefects Unit    See Answer
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