For each of the following statements, indicate whether a one- or two-tailed test is most appropriate: ·         Taking aspirin reduces the chance of a heart attack ·         Quizzing yourself before a...

For each of the following statements, indicate whether a one- or two-tailed test is most appropriate:

·         Taking aspirin reduces the chance of a heart attack

·         Quizzing yourself before a test will increase your test score compared with simply re-reading your notes

·         Completing a puzzle under time constraint will affect your accuracy

·         Sleep affects depression