Example: Wrong Decision Due to Error
Test of mu = 26.000 vs mu not = 26.000
Variable N Mean StDev SE Mean T P
With 16 25.625 3.964 0.991 -0.38 0.71
Without 15 24.733 1.792 0.463 -2.74 0.016
Variable N Mean StDev SE Mean 95.0 % CI
With 16 25.625 3.964 0.991 (23.513, 27.737)
Without 15 24.733 1.792 0.463 (23.741, 25.725)