Hi,
I am Retired Mechanical Engineer with rich manufacturing experience, with six sigma black belt certification, last 15 years myself away from my statistical concepts now i want to refresh my concepts with the help of a tutor this is mainly to refresh my statistical concepts like all type of (discrete, continuous, normal, t, chi, binominal, Poisson,.. etc.) distributions, inferences, hypotheses. regression, analysis of variation, normality test, statistical software