The serum cholesterol levels of 50 subjects randomly selected from the LA. Heart Data, data from a heart disease study on Los Angeles County employees, are shown below. 148 307 297 242 370 137 208 248 270 228 298 317 172 214 257 170 166 249 212 256 262 279 270 229 261 237 250 219 270 302 282 226 215 263 218 245 182 199 250 259 309 225 203| 183 245 280 316 270 276 248 Since n> 30, use the methods of Chapter 8 to create a large-sample 95% confidence interval for the average serum cholesterol level for LA. County employees. (Round your answers to three decimal places.) to Using a t-distribution to construct a 95% confidence interval gives the interval 233.334 to 260.226. Compare the two intervals. (HINT: The two intervals should be quite similar. This is the reason we choose to approximate the sample distribution of with a z-distribution when n> 30.) O The two intervals are similar. are uepi difer
The serum cholesterol levels of 50 subjects randomly selected from the LA. Heart Data, data from a heart disease study on Los Angeles County employees, are shown below. 148 307 297 242 370 137 208 248 270 228 298 317 172 214 257 170 166 249 212 256 262 279 270 229 261 237 250 219 270 302 282 226 215 263 218 245 182 199 250 259 309 225 203| 183 245 280 316 270 276 248 Since n> 30, use the methods of Chapter 8 to create a large-sample 95% confidence interval for the average serum cholesterol level for LA. County employees. (Round your answers to three decimal places.) to Using a t-distribution to construct a 95% confidence interval gives the interval 233.334 to 260.226. Compare the two intervals. (HINT: The two intervals should be quite similar. This is the reason we choose to approximate the sample distribution of with a z-distribution when n> 30.) O The two intervals are similar. are uepi difer
Holt Mcdougal Larson Pre-algebra: Student Edition 2012
1st Edition
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Chapter11: Data Analysis And Probability
Section11.5: Interpreting Data
Problem 1C
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Transcribed Image Text:The serum cholesterol levels of 50 subjects randomly selected from the L.A. Heart Data, data from a heart disease study on Los Angeles County employees, are shown below.
148 | 307
297
242
370
137
208
248
270| 228
298
317
172
214| 257
170
166
249
212
256
262
279 270
229 | 261 | 237 250
219
270| 302
282
226 215
263 218 245
182
199
250| 259
309
225
303
183
245 316
280
270| 276 | 248
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. (Round your answers to three decimal places.)
to
with a z-distribution when n > 30.)
Vn
Using a t-distribution to construct a 95% confidence interval gives the interval 233.334 to 260.226. Compare the two intervals. (HINT: The two intervals should be quite similar. This is the reason we choose to approximate the sample distribution of
O The two intervals are similar.
O The two intervals are very different.
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