• We all know that for calculating a statistically valid sample (discrete data) the formula – (Z/Delta)^2*p(1-p) is used. The worst case scenario being 50% defective and the minimum sample required would be 384. And this sample size holds good for a population of 7200 at 95% confidence and 5% precision.

    What happens after 7200 in this scenario? 1…[Read more]

  • Thanks All, I have got a fair idea now on the priorities 10 years, 2 months ago

  • Hi,

    Which one would you think will be more beneficial “reducing the variation” or “moving the mean towards the target” ? 10 years, 2 months ago