efficiency

  1. Francisco Sáez

    Mean Squared Error explained in a visual manner (method case)

    Dear all. I would like to share with you the video I have develop in which people can understand the concepts of Bias and Efficiency of an estimator from a total practical point of view and using a simulated case (method case). If you want understand this concepts, above all for people who don't...
  2. U

    Stochastic Frontier Analysis (SFA) or Data Envelopment Analysis (DEA)

    I'm trying to analyze bank efficiencies and come across two of the most used method of efficiencies measurement. I've studied many published papers on SFA and find some simplicity of the data that have to be used to run the method on statistical software. I wonder if anyone could enlighten me on...
  3. U

    Relative Efficiency

    Consider the following equation: T_i = A_i + Z_i * B_i,i=1,2...,6. Suppose for all i(i=1,2,...,6) data generation of A_i and B_i are exactly same for two methods. The two methods differ only in generating data of Z_i. For method 1, Z_i is generated from Bernoulli distribution with...
  4. H

    Help! What statistical analysis test should I use?

    Hello, I am no good at statistics and need help figuring out which statistical test I should use for a hypothetical research project. This is for a paper- I am not actually doing the research. Therefore, I probably have not defined all of variables necessary...but here goes...your help is...
  5. J

    Help with unbiased estimators and efficiency

    Suppose that Y1, Y2, ..., Yn constitute a random sample from the density function f(y|t) = e^-(y-t), y>t where t is an unknown positive constant a. Find an estimator t1(hat) for t by the method of moments b. Find an estimator t2(hat) for t by the method of maximum likelihood c...