Ad for a fitness center claims that completion of their course will result in a loss of weight: A random sample of participants revealed the following body weights before and after completion. (a) At the 0.01 level of significance, can it be concluded that the course will result in a significant weight loss, using the critical values method? (b) State the assumptions associated with this procedure. Name Before After Wellman 155 154 Gersten 228 207 Tamayo 141 147 Miller 162 157 Ringman 211 195 Garbe 185 180 Monk 164 150 Heilbrunn 172 16

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