Consider the following A/B testing regression, which one is the correct interpretation of "b" Outcome = a + b * Treatme

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Consider the following A/B testing regression, which one is thecorrect interpretation of "b"Outcome = a + b * TreatmentDummyIf b is positive, it can be interpreted that the treatment group issignificantly better than the control group in the outcome.When treatment dummy increases by one unit, the outcome willincrease by b units.b represents the difference between the treatment and the controlgroup.The average outcome in the control group equals to "a+b".