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  1. C

    Estimation of mean and variance

    Where: di represents daily demand and N represents lead time.
  2. C

    Estimation of mean and variance

    Hello, In my case Y variable represent average demand during lead time. I consider demand and lead time as uncertain. For example, when demand and lead time are constant and known: Lead time: 4 days Demand day 1: 150 units Demand day 2: 200 units Demand day 1: 250 units Demand day 1: 150...
  3. C

    Estimation of mean and variance

    Good day, I am looking for estimation of mean and variance for variable Y : Where: n and N are both variables and could take any type of distribution ( continuous or discrete) Suppose that we know the mean and varaince of both varaibles: n and N Is any estimation exist for variance and...