Machine oil is used by clothing manufacturers to lubricate and protect sewing machines.A company that produces machine oil must ensure that the viscosity of its product meets customer requirements.Consequently, the viscosity of every batch of oil produced is measured.Suppose that the process mean is 101 cP and the process standard deviation is 1.50 cP.What type of chart should be used to ensure the process remains in control?

Question

Quizplus · Accepted Answer

An individuals chart (also known as an I-chart) is used for monitoring the process mean when measurements are individual values. It is appropriate for the scenario described because the viscosity of each batch of oil is measured as a single value, and the goal is to ensure the process mean (viscosity in this case) remains consistent over time.

Machine Oil Is Used by Clothing Manufacturers to Lubricate and Protect