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13.6.1 Cranor and Christensen studied diabetics insured by two employers. Group 1 subjects were employed by the City of Asheville, North Carolina, and group 2
13.6.1 Cranor and Christensen studied diabetics insured by two employers. Group 1 subjects were employed by the City of Asheville, North Carolina, and group 2 subjects were employed by Mission-St. Joseph's Health System. At the start of the study, the researchers performed the Mann-Whitney test to determine if a significant difference in weight existed between the two study groups. The data are displayed in the following table. Weight (Pounds) Group 1 Group 2 252 215 240 185 195 220 240 190 302 310 210 295 205 270 312 212 190 202 200 159 126 238 172 268 170 204 268 184 190 220 170 215 215 136 140 311 320 254 183 200 280 164 148 164 287 270 264 206 214 288 210 200 270 170 270 138 225 212 210 190 265 240 258 182 192 203 217 221 225 126 May we conclude, on the basis of these data, that patients in the two groups differ significantly with respect to weight? Let a = .05
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