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Reverse Causation and Timing
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GMAT
GMAT.167 Reverse Causation and Timing
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A retailer announced a price-match guarantee, and sales were higher afterward. The retailer concludes that the guarantee caused the sales increase. Which fact most seriously weakens that conclusion?
A
Sales had already increased during a prelaunch advertising campaign before the guarantee took effect.
B
The guarantee applies to identical products sold by approved competitors.
C
Some customers ask employees how the guarantee works.
D
The retailer tracks sales through the same checkout system each month.
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