— Time Study — Required Number of Observations
Number of stopwatch cycles needed so the estimated mean cycle time is within a target relative precision at a chosen confidence level, n = (z·s / (k·x̄))².
Open data for a field built on precision
— Time Study — Required Number of Observations
Number of stopwatch cycles needed so the estimated mean cycle time is within a target relative precision at a chosen confidence level, n = (z·s / (k·x̄))².