List of CalculatorsControl Limit For C Chart Control Limits for IMR Chart Control Limits for NP Chart Control Limits for P Chart Control Limit For U Chart Control Limits for Xbar-R chart Control Limits for Xbar-S chart Cost of Poor Quality Guide to Master Black Belt Competency Guide to select the right Hypothesis Test Little’s Law Net Present Value Overall Equipment Efficiency (OEE) Process capability calculator Process Cycle Efficiency R Square Adjusted Sample size calculator for mann whitney test Sample Size Calculator for 1 Proportion Test Sample Size Calculator For 2 Proportion Test Sample Size Calculator For 1 Proportion Test (Finite Population) Sample Size Calculator For 2 Proportion Test (Finite Population) Sample Size calculator For 1 Sample T Test Sample Size Calculator For 2 Sample T Test Sample Size Calculator For 1 Sample T Test (Finite Population) Sample Size Calculator For 2 Sample T Test (Finite Population) Sample Size Estimation (Mean) Sample Size Estimation(Proportion Data) Sigma Level Calculator (Continuous Data) Sigma Level Calculator (Discrete Data – Defects) Sigma Level Calculator (Discrete Data – Defectives) Takt Time Sample Size Calculator for 2 Sample T Test Hint: Use this calculator to determine the number of samples required to compare two population means Confidence LevelThe minimum acceptable probability of preventing type I error90%95%99%99.9%Power of the TestThe minimum acceptable probability of preventing type II error 50%80%90%95%99%confidenceMean 1Enter the 1st population or sample mean Mean 2Enter the 2nd population or sample mean meanPopulation Standard DeviationThis is the common standard deviation of the two populations or samples (also known as the pooled standard deviation) NumberSample Size for 2 Sample T TestMinimum samples required to check if the two means are similar or not Δ