A company introduces mandatory ergonomic chairs and reports a 25% drop in employee sick days the following quarter. The CEO attributes this to the chairs. What additional information is MOST critical before accepting this causal claim?
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A
The cost per chair compared to prior office furniture.
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B
Whether sick day rates followed the same downward trend company-wide in prior years or industry-wide at the same time.
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C
How many employees expressed satisfaction with the new chairs.
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D
Whether the chairs come with a manufacturer warranty.