**Daily update | 08 April, 2022**

# StackExchange

#### Testing if a sample follows a given distribution

**Source:** stats**Views:** 327**Score:** 8**Tags:** hypothesis-testing chi-squared-test

#### Matching on pre-treatment outcome $z$-score in diff-in-diff analysis to avoid regression toward the mean bias in $ATT$ estimates?

**Source:** stats**Views:** 7**Score:** 2**Tags:** difference-in-difference matching z-score counterfactuals regression-to-the-mean

#### power analysis via Monte Carlo when effect size, means, and std unknown

**Source:** stats**Views:** 5**Score:** 2**Tags:** statistical-power monte-carlo

#### Extract valuable information from a list of dates for Machine Learning

**Source:** stats**Views:** 7**Score:** 2**Tags:** machine-learning python data-transformation feature-engineering

#### Mixed effects model: nesting when having a maximum of 2 cases per multiple nests?

**Source:** stats**Views:** 21**Score:** 2**Tags:** mixed-model lme4-nlme random-effects-model nested-data