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In a study of the effectiveness of certain exercises in weight reduction a group of 10 persons engaged in the exercises for one month and

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In a study of the effectiveness of certain exercises in weight reduction a group of 10 persons engaged in the exercises for one month and showed the following results; Weight before Weight after 211 198 180 173 171 172 214 209 182 179 194 194 160 161 182 182 172 166 156 154 Can the exercises be judged to be a success? Let a = 0.05 and t critical = 2.262 [4 Marks]

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