AB TEST conversion test
http://math.tut.fi/~ruohonen/S_1.pdfTest: the Difference between Two Means • https://abtestguide.com/calc/ Hypothesis testing steps: 1) Define null hypothesis, H0: e.g., two samples belong to the same population, or there is no trend. Usually we would like to reject it. 2) Choose the test statistics for a given data, e.g., mean, trend, and a test level α , e.g., 5%. 3) Consider or create the nul..
In a CPA payment model, the expected value of an impression : Model Notation CTR Model of the training set is given by: Choose a simple prior of Wck , Then we use Laplace approximation which enables us to approximate the posterior with a Gaussian distribution.: the local minimum of the log-posteriorAlso we can derive the following covariance : However, since the sampling time for every variable ..