Premise:
"It is also a favorite with summer hikers."
Hypothesis: Some people go hiking there in summer.

yes

Premise:
"Look for local ceramics with their characteristic design of tiger stripes and splashes, the colours deliberately allowed to run."
Hypothesis: The colors used have special significance for the locals.

it is not possible to tell

Premise:
"Largely ignoring Trent Lott--good advice for all--many News Quiz participants assumed that shorthand for Ronald Reagan is senility, and shorthand for Steve Martin is the old arrow through the head bit, which he performed back when he was still--oh, cruel, cruel participants!"
Hypothesis: Many of the News Quiz participants associate Ronald Reagan with senility.
yes