Premise: From which you may conclude either that Slate is a horrible place to work, or that Microsoft is a great place to work.

Hypothesis: You can either conclude that Microsoft is a bad place to work or that Slate is a really great place to work.
Answer: no

Premise: The Dorians, who came overland from northern Europe, conquered the Mycenaeans.

Hypothesis: The Mycenaeans were conquered and subjugated by foreign invaders.
Answer: yes

Premise: You must be careful if swimming along the Mediterranean coast, as many lives are lost here each year to the vicious undertows.

Hypothesis: Many lives are lost to the Mediterranean coast's deadly undertows.
Answer: yes

Premise: Addi?tional alternatives are house and apartment rentals and camping or caravanning.

Hypothesis: There are no additional alternatives to choose from.
Answer: no