Statistics Messages

Data Analysis

(posted: 31 Aug 2025)

This message outlines the lesson plans for our sessions on Tue 02 Sep and Thu 04 Sep as well as for our sessions on Tue 09 Sep and Thu 11 Sep.

After finishing our introductory discussions of the Octopus Test and the effect of the minimum wage, we will begin the theoretical component of the course with an introduction to data analysis. After that, we'll discuss measures of central tendency and measures of variability.

To prepare, please read Illowsky and Dean, chaps. 1 and 2. Then please begin working on homework 2.

Welcome to Statistics

(updated: 21 Aug 2025)

Welcome to Statistics. This website helps me organize the course. I hope you find it helpful.

I have posted a copy of the syllabus. Please review it and the materials listed on the statistics page. And in case you ever need them, I keep old messages on the message board page. I hope this way of organizing the course helps.

textbook and software

The textbook that we will use is Illowsky and Dean's (2023) Introductory Statistics, 2e. As a publication of OpenStax – a non-profit initiative that creates peer-reviewed, openly licensed textbooks – it's available in PDF and web versions at no cost and it's available in a printed version at low-cost.

To conduct a statistical analysis, we'll use Gretl because its drop-down menus make it easy to learn statistics. And it's open-source, so its price is zero and its users continuously enhance the software.

let's get started

I'd like to begin the semester with a pair of introductory discussions that will help you appreciate the theory that we'll discuss this semester.

In the first discussion, I'd like to compare Statistics and Machine Learning. The specific topic will be the "octopus test" that Bender and Koller developed in their 2020 paper, "Climbing towards NLU." To help you understand it, I have prepared some notes on Bender and Koller's paper. And for fun, be sure to read Appendix A of the paper. It's hilarious.

In the second discussion, I'd like to focus on a policy issue that we'll discuss later in the semester. The specific topic will be how the minimum wage affects employment. For that discussion, please study my monopsonist and minimum wage problem and please read my analysis of minimum wage, employment and annual pay.

I hope you'll enjoy the discussions. I'm looking forward to working with you this semester.

Sincerely,
- Eryk Wdowiak

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