2. Adult males between the ages of 35 and 50 participated in a study to evaluate the effect of diet and exercise on blood cholesterol levels. The total cholesterol was measured in each subject initially and then three months after participating in an aerobic exercise program and switching to a low-fat diet. The data are shown in the accompanying table. Do the data support the claim that low-fat diet and aerobic exercise are of value in producing a mean reduction in blood cholesterol levels? Use a = 5%. Blood Cholesterol Level Blood Cholesterol Level Before After Before After 249 241 265 229 239 220 240 231 238 210 260 242 235 215 255 234 247 248 250 248 245 232 230 228 225 226 260 235 247 233
2. Adult males between the ages of 35 and 50 participated in a study to evaluate the effect of diet and exercise on blood cholesterol levels. The total cholesterol was measured in each subject initially and then three months after participating in an aerobic exercise program and switching to a low-fat diet. The data are shown in the accompanying table. Do the data support the claim that low-fat diet and aerobic exercise are of value in producing a mean reduction in blood cholesterol levels? Use a = 5%. Blood Cholesterol Level Blood Cholesterol Level Before After Before After 249 241 265 229 239 220 240 231 238 210 260 242 235 215 255 234 247 248 250 248 245 232 230 228 225 226 260 235 247 233
Calculus For The Life Sciences
2nd Edition
ISBN:9780321964038
Author:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Publisher:GREENWELL, Raymond N., RITCHEY, Nathan P., Lial, Margaret L.
Chapter1: Functions
Section1.2: The Least Square Line
Problem 8E
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MEANS OF TWO SAMPLES (VARIANCES UNKNOWN) AND OBSERVED OBSERVATIONS
Give the complete Test of Hypothesis
Transcribed Image Text:2. Adult males between the ages of 35 and 50 participated in a study to evaluate the effect of
diet and exercise on blood cholesterol levels. The total cholesterol was measured in each
subject initially and then three months after participating in an aerobic exercise program and
switching to a low-fat diet. The data are shown in the accompanying table. Do the data
support the claim that low-fat diet and aerobic exercise are of value in producing a mean
reduction in blood cholesterol levels? Use a = 5%.
Blood Cholesterol Level
Blood Cholesterol Level
Before
After
Before
After
249
241
265
229
239
220
240
231
238
210
260
242
235
215
255
234
247
248
250
248
245
232
230
228
225
226
260
235
247
233
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