This is uninterpretable, as is the first "experiment." Earlier comments have focused on some of the seeming contradictions present, and I won't repeat them.
Some details are given regarding the coffee storage and preparation, but essentially nothing about the tasting, the "data analysis," and how conclusions were reached. This sounds like it took half an hour or at most an hour to do.
Anyone who has ever participated in a real blind tasting knows that properly done, it is arduous work, and that differences tend to be subtle unless the samples are hugely different. The power of suggestion is enormous and must be carefully avoided. The writeup suggests that this whole thing was simple to do and akin to comparing a McDonalds hamburger to piece of Kobe beef.
The results are (largely) counter intuitive and contradict the everyday observations of many people on this site. And as previously stated, the conclusions appear to have been already arrived at before the "study" was executed.
ken



