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A quality engineer from a plastic manufacturing company would like to make sure his batch process stays in control. The engineer measures the concentration of pigment of each batch for all 35 batches.
You can use this data to demonstrate Moving Average Chart and EWMA Chart.
| Worksheet column | Description |
|---|---|
| Batch | The batch identifier. This column contains the subgroup sizes. |
| Pigment | The concentration of pigment in the batch. |
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