Premise:
"In the Base Estimate, the willingness-to-pay estimate was derived from two contingent valuation studies (Viscusi et al."
Hypothesis: Two separate studies contributed to the estimate of willingness-to-pay.

yes

Premise:
"well what do you think about Nolan Ryan being the first baseball player to earn a million dollars that's the only thing i found out tonight"
Hypothesis: I had always thought that huge baseball contracts had been there from the beginning.

it is not possible to tell

Premise:
"Another fun fact about rats and pot is that rats won't . When given the choice of receiving an injection of THC or a placebo, rats consistently choose the placebo."
Hypothesis: Rats will choose THC every time it is offered.
no