Premise:
"That salt on the tray, what else could it have been?""
Hypothesis: There was no salt on the tray.

no

Premise:
"The consensus of Jack's colleagues is that reader contributions are essential."
Hypothesis: Jack's workmates agree that reader submissions are needed.

yes

Premise:
"so that they can pick and chose what they like uh you know there they've got one that they call a cafeteria plan i don't know whether you're familiar with that or not"
Hypothesis: The meal plan that the company offers is far cheaper than eating out everyday.
it is not possible to tell