APFIVE Conclusion of a Two Sample T-Test
A study compared recovery times (in days) for patients receiving two different treatments for the same condition. Treatment X (n₁ = 28, x̄₁ = 14.2, s₁ = 3.8) and Treatment Y (n₂ = 31, x̄₂ = 16.5, s₂ = 4.2) were compared using a two-sample t-test, yielding t = -2.28 and p = 0.026. Which conclusion appropriately addresses the original research question?
A
There is evidence that mean recovery times differ between treatments.
B
97.4% of patients recover faster with Treatment X.
C
There’s a 2.6% chance that the treatments are equally effective.
D
Treatment X is 2.3 days faster for all patients.
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