Question: Refer to Exercise 10.16. Since n 30, use the methods of Chapter 8 to create a large-sample 95% confidence interval for the average serum cholesterol

Refer to Exercise 10.16. Since n 30, use the methods of Chapter 8 to create a large-sample 95% confidence interval for the average serum cholesterol level for L.A. County employees. Compare the two intervals.
Exercise 10.16
The serum cholesterol levels of 50 subjects randomly selected from the L.A. Heart Data, data from an epidemiological heart disease study on Los Angeles County employees, follow.

148 304 300 240 368 139 203 249 265 229 303 315 174 209 253 169 170 254 212 255 262 284 275 229 261 239 254 222 273 299 278 227 220 260 221 247 78 204250 256 305 225 306 184 242 282 31 271 276 248

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