Question: [The following information applies to the questions displayed below.] An air-conditioning repair department manager has compiled data on the primary reason for 41 service calls
[The following information applies to the questions displayed below.]
An air-conditioning repair department manager has compiled data on the primary reason for 41 service calls for the previous week, as shown in the table.
| Job Number | Problem/ Customer Type | Job Number | Problem/ Customer Type | Job Number | Problem/ Customer Type | |||||||||
| 301 | N/R | 315 | O/R | 329 | N/R | |||||||||
| 302 | O/C | 316 | O/C | 330 | O/R | |||||||||
| 303 | W/C | 317 | F/R | 331 | F/R | |||||||||
| 304 | N/R | 318 | W/R | 332 | F/R | |||||||||
| 305 | O/C | 319 | O/C | 333 | O/C | |||||||||
| 306 | O/C | 320 | W/C | 334 | F/R | |||||||||
| 307 | W/C | 321 | N/R | 335 | F/C | |||||||||
| 308 | O/R | 322 | O/C | 336 | W/R | |||||||||
| 309 | N/R | 323 | O/R | 337 | N/R | |||||||||
| 310 | F/R | 324 | W/R | 338 | F/R | |||||||||
| 311 | F/R | 325 | F/C | 339 | W/C | |||||||||
| 312 | N/C | 326 | N/R | 340 | W/C | |||||||||
| 313 | W/C | 327 | N/R | 341 | N/R | |||||||||
| 314 | F/C | 328 | N/C | |||||||||||
| Key: | Problem type: | Customer type: | ||||
| N | = | Noisy | C | = | Commercial customer | |
| F | = | Equipment failure | R | = | Residential customer | |
| W | = | Runs warm | ||||
| O | = | Odor | ||||
Problem 9-2 Part a
a.Using the data, prepare a check sheet for the problem types for each customer type.
(1) Residential customer type
| Residential | |
| Noisy | |
| Failed | |
| Odor | |
| Warm | |
| Totals | |
(2) Commercial customer type
| Commercial | |
| Failed | |
| Noisy | |
| Odor | |
| Warm | |
| Totals |
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