Premise:
"They love the Backstreet Boys, Dawson's Creek , and wrestler Steve Austin, and their superficial sophistication hides insecurity."
Hypothesis: They have superficial sophistication.

it is not possible to tell

Premise:
"For example, Oakwood Heights does not have a storm shelter, he said. "
Hypothesis: He was adamant that Oakwood Heights has dozens of well-supplied storm shelters.

no

Premise:
"Both the Congress and the Executive Branch have critical roles to play in achieving desired outcomes for the American people."
Hypothesis: Both the Congress and the Executive Branch have critical roles to play
yes