Premise:
"Mr. Carter told me so.""
Hypothesis: Mr. Carter is my professor.

it is not possible to tell

Premise:
"they're hard workers trying to make it"
Hypothesis: They have grown complacent, and have begun slacking on the job.

no

Premise:
"The Industrialist stared, looked at the Astronomer, turned to stare again."
Hypothesis: The Industrialist broke his stare to glance at the Astronomer and then returned to staring.
yes