easy · GMAT Quant
An operations manager evaluates order fulfillment processing times across two warehouses, Warehouse A and Warehouse B. The total sum of squares (mathrmSST) for the combined data is 850, and the within-group sum of squares (mathrmSSW) is 320.
What is the between-group sum of squares (mathrmSSB)?
- 530
- 1,170
- 265
- 320
- 420
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