easy · GMAT Verbal
A bakery moved its opening time one hour earlier. Morning sales then increased. The owner concludes that the earlier opening caused the increase.
Which new fact most strengthens the conclusion?
- Most of the additional sales occurred during the newly added hour.
- The result had already been improving at the same rate before the change.
- Very few of the people measured actually used the change.
- A separate change occurred at the same time and could explain the result.
- The organization expected the result to improve before collecting any data.
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