A drug was developed for reducing cholesterol levels in heart patients. The cholesterol levels before and after
Question:
a. Use the sign test to determine whether or not this drug reduces the cholesterol levels of heart patients. Use α = .01.
b. Use the Wilcoxon signed-rank test to test the hypothesis in part a at the 1% level of significance. Are your conclusions the same as those in part a?
Transcribed Image Text:
After Patient Before Patient Before After 1 257 222 243 217 14 15 210 263 217 243 177 174 16 214 198 388 4 258 260 17 392 294 244 370 310 295 236 18 19 357 299 20 21 390 383 255 258 247 233 281 276 409 214 410 216 22 294 295 227 23 257 10 11 217 210 24 227 231 12 340 335 25 385 374 13 364 343
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a Define p Pcholesterol level before is greater than after treatment and x number of patients who sh...View the full answer
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Related Book For
Introduction To Probability And Statistics
ISBN: 9780495389538
13th Edition
Authors: William Mendenhall, Robert J. Beaver, Barbara M. Beaver
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