Enter Average Excess Return (Alpha) and Standard Deviation of the Alpha to calculate for Number of Years Needed for
t-stat of 2. A t-stat of 2 is needed to be 97.5% confident that the excess return (alpha) is not zero.
x
Average Excess Return (Alpha):
s
Standard Deviation of Alpha:
t
t-stat:
2
Calculate
n
Number of Years Needed for a
t-stat of 2: