Question: It was noted in Question 4.3.24 that the mean () and standard deviation () of pregnancy durations are 266 days and 16 days, respectively. Accepting

It was noted in Question 4.3.24 that the mean (Î¼) and standard deviation (Ïƒ) of pregnancy durations are 266 days and 16 days, respectively. Accepting those as the true parameter values, test whether the additional assumption that pregnancy durations are normally distributed is supported by the following list of seventy pregnancy durations reported by County General Hospital. Let Î± = 0.10 be the level of significance. Use €œ220 ‰¤ y

251 264 234 283 226 244 269 241 276 274 263 243 254 276 241 232 260 248 284 253 265 235 259 279 256 256 254 256 250 269 240 261 263 262 259 230 268 284 259 261 268 268 264 271 263 259 294 259 263 278 267 293 247 244 250 266 286 263 274 253 281 286 266 249 255 233 245 266 265 264

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