The statements to which you refer are known as Barnum statements.
facade
Meretricious?
Probably not quite what you mean, but a tremendous word all the same.
Bingo. I learned the term from reading this Straight Dope Staff Report which also covers similar stratagems.
Short and sweet. BS.
nevermind
Quoth kferr:
I can’t speak for anyone else, but my bollocks definitely aren’t on the tip of anyone’s tongue.
pot-headed
Are you talking about the kind of thing like a correlation that turns out to be statistically insignificant? I wonder if there’s a term in statistics for such a case.
“Semblance” or “platitudes”.
No, no, he is not. He’s talking about making statements that appear to be impressive descriptions of something specific, but are really only empty generalities; tautologies that, on further reflection, don’t really say anything.
I’d just call that not statistically significant. What’s more interesting is the notion of a spurious relationship.
On reflection, I think that either vacuous or platitudinous was the word I was looking for. Thanks to everyone.
Not since my wedding day, anyways. 
Spurious?
Delusory?
Political rhetoric?
Bombast and foofaraw are in the same territory but not quite it. How about “otiose” or “pretentious?”
RR