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What does a large t statistic (whether positive or negative in sign) imply in an independent-measures t test? If the frequency of pendulum is four times greater on an unknown planet than earth ,then the gravitional constant on that planet is? Aluminum will react with bromine to form aluminum bromide (Al2Br6). What mass of bromine (g) is needed to form 1.1 mol of Al2Br6? Plz help!? Which is harder, Math for Liberal Arts, College Algebra, or Linear Algebra? If you an engineer, can you contact me so i can ask a series of questions concerning your field?