Premise:
"One is that--contrary to the opinion of virtually everyone else in the world--AIDS in fact hasn't reduced gay males' life expectancy by that much--a few years, at most."
Hypothesis: Gay life expectancy doesn't fluctuate much.

it is not possible to tell

Premise:
"The Commission states that it believes that the rule and amendments as adopted impose a smaller burden upon small brokers and dealers than any of the alternatives."
Hypothesis: The rule is easier on small brokers and dealers than the rest.

yes

Premise:
"how long have you been with TI uh"
Hypothesis: So, you say you've never been with TI?
no