To determine whether listening to relaxing classical music, such as that composed by Mozart, will increase test scores in mathematics, researchers test a group of people. They give the subjects a mathematics test, record the mean test score before listening to Mozart, then have the subjects listen to Mozart while taking a new mathematics test. The researchers then calculate the average score for that new test. What are the null and alrernative hypotheses for this scenario? The answer is needed in words and what is your reasoning on the null and alternative hypothesis?

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Think of null as original or way it's always been. The alternative is what you're testing, what has changed, or what is being questioned.