contingency

  1. L

    R - bootstrap confidence intervals, Create a matrix, Perform stepwise regressions

    I'm brand to statistics and taking my 1st class in almost 40 years, so I'm quite a bit behind the times. On top of all of that, I am not very computer savvy, and have very little experience using any technical functions with computers, outside of checking email. I have no programming experience...
  2. B

    [Discrete test sample size] Number of samples to test after failures occur

    Hello, I work as an engineer at a large manufacturer and we typically use high stress tests on new products to discover failure modes. Sometimes when we have failures, we attempt to fix the problem and want to re-run the test to see if we were successful. The most obvious question then and...