In part 1, part 2, and part 3, we shared our blind wine-tasting experiment, the survey results, and the experimental results, respectively. To wrap things up, we’re going to see if the survey results tied to the experimental results in any meaningful way.

First, we look at whether self-identified knowledge correlated to the total number of correct appraisals:

We have no evidence of a relationship (p = 0.795). So we’ll look at the number of correct answers by how much each participant usually spends:

Again, no evidence of a relationship (p = 0.559).

How about how many types of wine each participant regularly buys?

 …