Daily update | 13 March, 2022
StackExchange
I'm confused by the notation in this question

Source: stats
Views: 26
Score: 1
Tags: r mathematical-statistics
Possible pitfalls/accuracy issues using a weighted average of a median

Source: stats
Views: 13
Score: 1
Tags: median weighted
Categorical variable with too many categories. Should I group them according to frequency or according to the target?

Source: stats
Views: 13
Score: 1
Tags: multiple-regression categorical-data categorical-encoding many-categories
Statistical power of tests on unequal and known variances vs equal but unknown variances

Source: stats
Views: 24
Score: 1
Tags: hypothesis-testing inference descriptive-statistics statistical-power
Show that the estimator $ \delta_n(X)=\Phi(\sqrt{\frac{n}{n-1}}(a-\bar{X}_n)) $ is an unbiased estimator

Source: stats
Views: 26
Score: 1
Tags: self-study mathematical-statistics