You just talk in circles. If you actually understood statistics, you would know how weak it is to use QB rating as the one and only determining factor for how effective a QB has been. I'll ask you AGAIN: Has Prescott been better than Rodgers this year? His QB rating is higher, so based on your logic, he has been, right?
You brought up stats and how they're predictive. Demonstrate for me, first, exactly what red zone QB rating predicts, and next demonstrate how strongly it predicts those things. Does it predict team red zone TD%? Team success? Amount of TDs scored, total? With no background in statistics at all, someone could look at what you posted as well as a couple other stats and pretty quickly make a very good guess. And hint: Those stats would not back up whatever your point is.
More on QB rating. I'd be interested to see how quickly and easily it fluctuates (Any guess? You think it stays fairly consistent week-to-week?) My guess would be it's a volatile number considering the small amount of samples. What say you? (Don't worry, I'll summarize all of these questions for you at the end!)
"Also what comprises a large enough sample size to be predictive in this context." Uh, what? You're talking out of your behind here. Stay in your lane, bro.
Just for fun, because it was quick and easy, I added red zone TDs of a few QBs. Here's where we're at:
Brees - 27
Rodgers - 27
Prescott - 19
Bortles - 19
Luck - 19
Mariota - 19
Winston - 18
Brady - 16
Carr - 16
Taylor - 15
Tied for 3rd in the league seems pretty damn effective to me. But man, if only we had Cody Kessler we'd be able to better score in the red zone. ******!
If I find time today to run an analysis, I will. I'm certain you don't actually want that, though, and regardless of what's found out, you will squirm out of it, because you likely won't even understand it and you are far beyond admitting how dumb it was to use QB rating and QB rating alone to make a definitive claim.
But to summarize, can you answer any of the following:
1). Has Prescott been better, overall, than Rodgers? Why or why not?
2). What does QB rating predict? Does it correlate strongly with team or player TD%? Does it predict those things? How much so?
3). How easily does red zone QB rating change week-to-week?
4). How significant do you think the red zone QB rating differences are, considering the likely volatility due to relatively small sample sizes? How far do you suppose Prescott's RZ QB rating deviates from, say, #5 on your list?
5). What's an acceptable statistical sample size? (You can google that one).
6). This is more opinion: Do you think that more red zone opportunities would cause the QB ratings of certain players to drop? If Cody Kessler had the same amount of chances as Prescott, do you feel confident saying he'd still be better in the red zone?
For the record, I didn't appeal to my authority to simply say "I'm right, you're wrong"; you challenged that I even understood what tests could be run to get a clearer picture of this issue. I pointed out that I believe, based on my background, that I do, in fact, understand those things.