# sample

## Sample size calculation

If you’re going to run a test on rabbits, you have to decide how many rabbits you’ll use. This is…

## Randomization audit

“How would you go about drawing a random sample?” I thought that was kind of a silly question. I was…

## Follow & Learn: Experiment Size With Python

at 80%. The plot below shows the distributions under null and test hypotheses. Analytical ApproachLet’s take the plot above and…

## SwiftUI 101: How Not to Initialize Bindable Objects

(What the Frack)When I first saw this, my initial reaction was that my InitListViewModel wasn’t being released for some reason and…

## How to Lie with Statistics

That is the question. When a sample is large enough and selected properly, it tells us something. We see many…

## How One Script Can Replace Your Whole Department.

How One Script Can Replace Your Whole Department. Kieran MaherBlockedUnblockFollowFollowingMay 18Photo by Alex Kotliarskyi on UnsplashWhen we think automation, we tend…

## Master Your Hypothesis Test: A tutorial on Power, Bootstrapping, Sample Selection, and Outcome Analysis.

This is a very nice sanity check, and the formula also gives us a P-Value. 6. Evaluating our P-ValueWhen we…

## Statistics for Data Science: Introduction to t-test and its Different Types (with Implementation in R)

He/she can broadly follow the below steps: Select a group of people Record the individual eating time of a standard…

## Statistics Research Principles and Terminologies

That’s where inferential statistics comes into the picture. Inferential statistics refer to the use of sample data to reach some…

## Sample size and correlation

As a rule of thumb, statisticians consider an r-value of 0. 7 to be strong. Let’s take a look at…

## Stratified sampling and how to perform it in R

Stratified sampling and how to perform it in RThe proper way to sample a huge datasetGianluca MalatoBlockedUnblockFollowFollowingMay 7Photo by Giorgio Tomassetti on UnsplashIn…

## 5 Minute, Duct Tape App Analytics Through Microsoft Flow

5 Minute, Duct Tape App Analytics Through Microsoft FlowIsaac JonesBlockedUnblockFollowFollowingMar 30Photo by Jonatan Lewczuk on UnsplashNow, let me preface this by…

## How to correctly select a sample from a huge dataset in machine learning

We must perform some kind of high-level comparison with the population made by the other editions. For example, we could…

## Election Poll Simulation, Margin of Error and Central Limit Theorem with Python

Election Poll Simulation, Margin of Error and Central Limit Theorem with PythonWaldecir FariaBlockedUnblockFollowFollowingMar 14While learning about the Central Limit Theorem (CLT)…

## Conducting a Population Proportion Estimation Study(Binary Variable): Ideas on how to approach it.

The answers to these questions are what shaped the results of my study. Before I conduct my own research, I…

## On how I acknowledge human based bias and how to handle it

On how I acknowledge human based bias and how to handle itA word on how we, data practitioners, should be more…

## An Introduction to the Bootstrap Method

The related statistic concept covers:Basic Calculus and concept of functionMean, Variance, and Standard DeviationDistribution Function (CDF) and Probability Density Function…

## Experiment sample size calculation using power analysis

Experiment sample size calculation using power analysisStan NevedomskyBlockedUnblockFollowFollowingJan 22If you use experiments to evaluate a product feature, and I hope you…

## Statistics for Data Scientists in 5 mins

This means that alpha level of 1% requires more statistical evidence than 5%.Why is 5% used as significance level so…

## Which hypothesis test to perform?

Based on the data, can we conclude that the mean intraocular pressure of the population differs from 14 mm Hg?Step…

## Where Do Progressives and Conservatives Come From?

First, here is the same chart as above with all states that had less than 5 total legislators in our…

## Support Vector Machines Explained

SVMs find a line (or hyperplane in dimensions greater than 2) in between different classes of data such that the…