Problem 9-2 [The following information applies to the questions displayed below.

Question

Problem 9-2

[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.

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

(2) Commercial customer type

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

Explanation / Answer

Residential Noisy 9 Warm 3 Failed 7 Odor 4 Total 23 Commercial Noisy 2 Warm 6 Failed 3 Odor 7 Total 18

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