Premise:
"i said okay because i'm not a swimmer"
Hypothesis: I'm not a swimmer, I am black, so alright.

it is not possible to tell

Premise:
"Seek a room on one of the upper floors, as the street is extremely busy and noisy."
Hypothesis: Look for a room upstairs as the lower levels are too packed.

yes

Premise:
"The IRA's tactics also happen to be well suited to the conventions of Hollywood cinema."
Hypothesis: They never knew how versatile it could be.
it is not possible to tell