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A group of five individuals with high cholesterol levels were given a new drug that was designed to lower cholesterol levels. Total cholesterol levels, in mg/dL, were measured before and after treatment, with the following results. Sample1-Before, Sample2-After Subject Before After 283 215 2 299 206 3 274 187 248 212 5 275 196 Determine if the alternative hypothesis is "right", "left" or "two-tailed" to test that the mean cholesterol level is reduced. O Right-Tailed O Two-Tailed O Left-Tailed