Identify the two most plausible hypotheses to explain the circumstances in the following situation. In addition, for both hypotheses, identify the most plausible experiment that would result in additional evidence that could be used to either confirm or refute the hypotheses.
Professor Klein kept running into the same problem whenever he tried to teach a particular logical equivalence. Invariably, students could not seem to grasp why the statement form, ~(P v Q), is equivalent to the statement form, ~ P ~ Q. He had always used a truth table to demonstrate logical equivalence, but that managed to convince only a handful of students that the statements logically say the same thing.
You leave your cat alone for a week, which you've never done before, but you provide enough food, water, and kitty litter to last the duration of your absence. You also ask a friend to look in on the cat once a day. When you return, your cat ignores you for an hour, after which you become alarmed.
Hector's four horses, which normally eat their morning grains heartily, have refused to eat this morning. They are eating their hay and drinking their water.
Helena doesn't understand why she keeps earning substandard scores on her logic exams. She's taken two exams and can't seem to score above a 72. Exam 3 is coming up.
Shauna's pasta isn't turning out the way she wants. Every time she makes it, the pasta comes out mushy, but she wants it al dente.
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