Lectures are on hold for the next two weeks. I'll be traveling and unable to to create any new award-winning videos. Nor any new non-award-winning videos.

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…

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…

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…

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,…

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…

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…