Posted inStatistics
Predictive Statistics: GPA Case Study, Part II
Read Part I : Download the Quirk’s article. To understand why ordinary regression assumptions are bad, we need to look at some (new data) scenarios. Suppose that Bob had a…
Posted inStatistics
Predictive Statistics: GPA Case Study, Part I
Read Part II : Download the Quirk’s article. Predictive statistics differs from classical (frequentist and Bayesian) practices because it focuses on observables and not metaphysical entities. Observables are the data…
Posted inPhilosophy Statistics
Ayn Rand and the Differences Between Groups
Roger Kimball is causing a stink, a predictable yet enjoyable stink, by publishing Anthony Daniels's review of an Ayn Rand biography in this month's The New Criterion. There are two…
Posted inStatistics
R Lecture 7: Reading External Data Part II
10 minutes is a shockingly short period of time! Today, some common errors you WILL see when you try to read in data. The code below has many typos. Watch…
Posted inStatistics
Climate Skeptic Conspiracy Strikes!
I have never been part of a conspiracy before---there was never the opportunity---so you can imagine how excited I am about finally joining one. It's true that, in 1978, I,…
Posted inStatistics
R Lecture 6: Reading External Data Part I
10 minutes is a shockingly short period of time! Go to https://www.wmbriggs.com/book/ and save the advertising.csv file into your myR folder. Make SURE it is saved as a CSV file…
Posted inStatistics
Quirk’s: Telling the future from the past: predictive versus classical statistics
Today's post is at Quirk's, the well known trade journal and marketing research review. If you want to read the article on-line at Quirk's, registration is required, but free. You…
Posted inCulture Statistics
Malthus Was Wrong, But Not Why You Think
It's hard to think of a historical writer more misunderstood than Thomas Malthus. A week doesn't go by without somebody dropping his name, but only to show how wrong he…