Premise:
"In fact, although it costs only about $100 a year to have a Lojack, Ayres and Levitt estimate that each individual Lojack prevents about $1,500 a year in losses due to theft."
Hypothesis: The Lojack is estimated by Ayres and Levitt to save $1,500 each year in losses to theft.

yes

Premise:
"We don't have much leeway around that 'one or two drinks a day,' he said, and what isn't known is whether encouraging moderate drinking will also encourage excessive drinking."
Hypothesis: It's an established fact that encouraging moderate drinking does not increase rates of binge drinking.

no

Premise:
"Two mountains soon passed and Ca'daan found the descent to the barrens soothing."
Hypothesis: Ca'daan was enjoying the trip down.
yes