I-MR Chart
Quality
I-MR Chart
Individuals and Moving Range Chart
Control chart for variable data collected one observation at a time.
Examples
- 01Because each batch of adhesive is tested only once, the lab tracks viscosity on an I-MR Chart.
- 02The supplier sends an I-MR Chart for each batch's purity, and the customer reviews the moving range for sudden jumps.
- 03When the I-MR Chart shows eight batches in a row above the centre line, the incoming inspection asks the supplier what changed.