Tag: control charts

Background FabChip (fictitious name) was a leader in the global semiconductor industry, known for its cutting-edge wafer-fabrication equipment. With the semiconductor sector at the core of everything from smartphones to medical devices, FabChip’s role in supplying this vital technology was crucial. The equipment FabChip manufactured, however, was often large and complex. When it arrived at […]

Have you ever wondered why your doctor may keep you waiting in the waiting room or why you have to fast before doing a blood test? Let’s see if Lean Six Sigma can give you an answer.

Steps in Constructing an X-Bar and R Control Chart: This document contains the step-by-step instructions to construct an X-bar and R control chart. First the R chart is constructed. If the R chart validates that the process variation is in statistical control, the XBAR chart is constructed.

Is the variation in your process data to be expected, or has something special occurred? A control chart will give you the answer. The X-bar and R chart will give you the details.