a/b testing

  1. U

    Hypothesis testing for 2 sample proportion

    Previously, the manager measured that the machine effectiveness was at 67.3% with a sample of size of 9. The team has made some improvements by reducing the time of changeovers, major stops and speed loss. Since those improvements, the manager has measured a rate of effectiveness at 78.2% with a...
  2. D

    Interpret GLM model in test of difference in proportions

    I'm facing the following situation: We conducted a marketing campaign with three groups: 2 test vs 1 of control, where two different type of coupons sent to the two test groups, 3 euros vs. 6 euros. I understand that the best way to test the difference in proportion is a GLM model with binomial...
  3. D

    Multiple A/B test in R: methodology and any know tutorial

    Dear All I'm currently facing the following situation. We have run a marketing campaign providing to some members one of two type of coupones. In addition to this, some of these members were already contacted in the previous one by another campaign. So I have the following dataset, where...
  4. S

    A/B/C Conversion Optimisation

    Hi All, I'm trying to understand the process behind testing both A/B site changes for statistically significant increases in conversion rate, and also how then to expand this to testing multiple variables. My understanding is that this is a binomial distribution (n=visits, p=conversion...