T TEST, REGRESSION, PCA, ANOVA, DATA ANALYSIS, DATA VISUALIZATION, STATISTICAL ANALYSIS - AN OVERVIEW

$\begingroup$ These usually are not matrix equations; I rarely use those here, as A lot of people Do not read through them. The 1st ANOVA represents An analogous problem as being the previous t-take a look at. I am just pointing out that if you can operate a two-sample unbiased t-take a look at, you'll be able to operate the same data as an ANOVA (