estimate Sample Size Via Student T
fun estimateSampleSizeViaStudentT(desiredHW: Double, initStdDevEst: Double, level: Double = 0.95): Long
Estimate the sample size based on iterating the half-width equation based on the Student-T distribution: hw = t(1-alpha/2, n-1)*s/sqrt(n) <= epsilon
Return
the estimated sample size
Parameters
desired HW
the desired half-width (must be bigger than 0)
init Std Dev Est
an initial estimate of the standard deviation (must be bigger than or equal to 0)
level
the confidence level (must be between 0 and 1)