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Q1) FDA performed study to estimate effectiveness of a drug it recently developed to decrease level of Total Blood Cholesterol. In study, 20 persons with high level cholesterol (desirable level is less than 200 milligrams per decilitre of blood (mg/dL)) were administered recently developed pill. Pharmaceutical company which produces pill claims that patients with high cholesterol level will experience reduction of at least 50 mg/dL by using this pill. Results are listed in table below. You have been asked to test whether data support company's claim? Test at α = 0.05. Suppose normality.
Before Using Pill
After Using Pill
241
175
276
166
206
174
236
196
245
168
220
209
262
255
217
251
198
249
279
247
224
229
219
282
216
248
214
261
233
207
263
210
145
169
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