An air-conditioning repair department manager has complied data on the primary r

An air-conditioning repair department manager has complied data on the primary reason for 41 service calls for the pervious week as shown in the table.
Management of Quality
An air-conditioning repair department manager has complied data on the primary reason for 41 service calls for the pervious week as shown in the table. Using data make a check sheet for the problem types for each customer type and then construct a Pareto diagram for each type of customer.
Job Number
Problem/Customer Type
301
F/R
302
O/R
303
N/C
304
N/R
305
W/C
306
N/R
307
F/R
308
N/C
309
W/R
310
N/R
311
N/R
312
F/C
313
N/R
314
W/C
Job Number
Problem/Customer Type
315
F/C
316
O/C
317
W/C
318
N/R
319
O/C
320
F/R
321
F/R
322
O/R
323
F/R
324
N/C
325
F/R
326
O/R
327
W/C
328
O/C
Job Number
Problem/Customer Type
329
O/C
330
N/R
331
N/R
332
W/R
333
O/R
334
O/C
335
N/R
336
W/R
337
O/C
338
O/R
339
F/R
340
N/R
341
O/C
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