The following data represent weights (pounds) of a random sample of professional football players on the following teams. X1 weights of players for the Dallas Cowboys, X2 = weights of players for the Green Bay Packers, and X3 = weights of players for the Denver Is there any difference in the weights from these three samples? Test your Broncos. hypothesis. 266 246 251 240 254 252 256 X1 250 255 255 264 250 265 245 252 263 248 228 221 223 220 275 270 225 222 256 235 X2 260 271 258 263 267 254 255 250 248 230 225 X3 270 250 281 273 257 264 233 254 268 265 252 216 241

Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
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Chapter4: Equations Of Linear Functions
Section4.5: Correlation And Causation
Problem 23PFA
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4. Write a short note on measures of dispersion with an example.
The following data represent weights (pounds) of a random sample of professional football
players on the following teams. X1 = weights of players for the Dallas Cowboys, X2 =
weights of players for the Denver
Is there any difference in the weights from these three samples? Test your
weights of players for the Green Bay Packers, and X3 =
Broncos.
hypothesis.
X1
250
255
255
264
250
265
245
252
266
246 251
263
248
228 | 221
223
220
X2
260
271
258
263
267
254
255
250
248
240
254
275
270
225 222
230
225
X3
270
250
281
273
257
264
233
254
268 252 256
265
252 256
235
216
241
5. A study of the effect of caffeine on muscle metabolism used eighteen male volunteers who each
underwent arm exercise tests. Nine of the men were randomly selected to take a capsule containing
pure caffeine one hour before the test. The other men received a placebo capsule. During each
exercise the subject's respiratory exchange ratio (RER) was measured. What is your conclusion on
effect of caffeine on respiratory exchange rate?
Placebo
105
119
100
97
96
101
94
95
98
Caffeine
96
99
94
89
96
93
88
105
88
Transcribed Image Text:4.48 2:11 O M 4G+ 474% VOLTE 1 KB/S A2041175501_2...20_PTY518CA2 - Read-only Read Only - You can't save changes to t.. 4. Write a short note on measures of dispersion with an example. The following data represent weights (pounds) of a random sample of professional football players on the following teams. X1 = weights of players for the Dallas Cowboys, X2 = weights of players for the Denver Is there any difference in the weights from these three samples? Test your weights of players for the Green Bay Packers, and X3 = Broncos. hypothesis. X1 250 255 255 264 250 265 245 252 266 246 251 263 248 228 | 221 223 220 X2 260 271 258 263 267 254 255 250 248 240 254 275 270 225 222 230 225 X3 270 250 281 273 257 264 233 254 268 252 256 265 252 256 235 216 241 5. A study of the effect of caffeine on muscle metabolism used eighteen male volunteers who each underwent arm exercise tests. Nine of the men were randomly selected to take a capsule containing pure caffeine one hour before the test. The other men received a placebo capsule. During each exercise the subject's respiratory exchange ratio (RER) was measured. What is your conclusion on effect of caffeine on respiratory exchange rate? Placebo 105 119 100 97 96 101 94 95 98 Caffeine 96 99 94 89 96 93 88 105 88
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