Determine the t critical value(s) that will capture the desired t-curve area in each of the following cases. (Assume that central areas are centered at t = 0. Round your answers to decimal places.) n USE SALT (a) Central area = 0.95, df = 15 (b) Central area = 0.95, df = 20 (c) Central area = 0.99, df = 20

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