Premise:
"They were also experts in training a "raw girl," the inevitable result being that the raw girl, once trained, departed elsewhere where her newly acquired knowledge commanded a more substantial remuneration than the archdeacon's meagre purse allowed."
Hypothesis: Being a raw girl was considered expensive because the archdeacon had fallen on hard times.

it is not possible to tell

Premise:
"She had heard it said that he might one day be Prime Minister."
Hypothesis: No one ever hinted that he might become Prime Minister one day.

no

Premise:
"Whittington ordered a substantial lunch for himself and his companion; then, as the waitress withdrew, he moved his chair a little closer to the table and began to talk earnestly in a low voice."
Hypothesis: The waitress was tipped quite generously by Whittington.
it is not possible to tell