Control charts are monitoring schemes, widely used in operations and manufacturi

Question

Control charts are monitoring schemes, widely used in operations and manufacturing environments, to determine when a process is “in-control” and in the presence of only common-cause variation. An example of an application of control charts is given by Mario F. Triola is titled “Quality Control at Perstorp”. According to Triola, “Perstrop Components, Inc. uses a computer that automatically generates control charts to monitor the thickness of the floor insulation the company makes for Ford Rangers and Jeep Grand Cherokees” (2004, p.710). The computer costs offset the cost of the manual labor to produce the charts by $20,000. It was used to ensure that the thickness was between the specifications of 2.912 mm 2.98 mm. The use of the computer-generated control charts reduced Perstrop’s waste by two-thirds (2004).  Is the process in control or out of control? Would the process be in control if Western Electric rules are considered? Explain your reasoning.

Explanation / Answer

Although computer costs offset the manual labor to produce the charts by $20000 but thickness specifications are also maintained and it reduces the perstrop's waste by two-thirds i.e., it produces only one-third waste. So process is under control.

For next question please specify estern electric rules.

Related Questions

Navigate

• Browse (All)
• Browse C
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.