Question
In: Statistics and Probability
Independent random samples of professional football and basketball players gave the following information. Assume that the...
Independent random samples of professional football and basketball players gave the following information. Assume that the weight distributions are mound-shaped and symmetric.
Weights (in lb) of pro football players: x1; n1 = 21
| 248 | 262 | 254 | 251 | 244 | 276 | 240 | 265 | 257 | 252 | 282 |
| 256 | 250 | 264 | 270 | 275 | 245 | 275 | 253 | 265 | 271 |
Weights (in lb) of pro basketball players: x2; n2 = 19
| 205 | 200 | 220 | 210 | 191 | 215 | 221 | 216 | 228 | 207 |
| 225 | 208 | 195 | 191 | 207 | 196 | 182 | 193 | 201 |
(a) Use a calculator with mean and standard deviation keys to calculate x1, s1, x2, and s2. (Round your answers to one decimal place.)
| x1 = | |
| s1 = | |
| x2 = | |
| s2 = |
(b) Let μ1 be the population mean for
x1 and let μ2 be the
population mean for x2. Find a 99% confidence
interval for μ1 − μ2.
(Round your answers to one decimal place.)
| lower limit | |
| upper limit |
Solutions
orchestra answered 1 year agoRelated Solutions
Independent random samples of professional football and basketball players gave the following information. Assume that the...
Independent random samples of professional football and
basketball players gave the following information. Assume that the
weight distributions are mound-shaped and symmetric. Weights (in
lb) of pro football players: x1; n1 = 21 249 263 255 251 244 276
240 265 257 252 282 256 250 264 270 275 245 275 253 265 271 Weights
(in lb) of pro basketball players: x2; n2 = 19 203 200 220 210 193
215 223 216 228 207 225 208 195 191 207...
Independent random samples of professional football and basketball players gave the following information. Assume that the...
Independent random samples of professional football and
basketball players gave the following information. Assume that the
weight distributions are mound-shaped and symmetric. Weights (in
lb) of pro football players: x1; n1 = 21 244 262 256 251 244 276
240 265 257 252 282 256 250 264 270 275 245 275 253 265 272 Weights
(in lb) of pro basketball players: x2; n2 = 19 203 200 220 210 193
215 222 216 228 207 225 208 195 191 207...
Independent random samples of professional football and basketball players gave the following information. Assume that the...
Independent random samples of professional football and
basketball players gave the following information. Assume that the
weight distributions are mound-shaped and symmetric. Weights (in
lb) of pro football players: x1; n1 = 21 249 261 256 251 244 276
240 265 257 252 282 256 250 264 270 275 245 275 253 265 271 Weights
(in lb) of pro basketball players: x2; n2 = 19 202 200 220 210 191
215 223 216 228 207 225 208 195 191 207...
Independent random samples of professional football and basketball players gave the following information. Assume that the...
Independent random samples of professional football and
basketball players gave the following information. Assume that the
weight distributions are mound-shaped and symmetric. Weights (in
lb) of pro football players: x1; n1 = 21 247 262 255 251 244 276
240 265 257 252 282 256 250 264 270 275 245 275 253 265 272 Weights
(in lb) of pro basketball players: x2; n2 = 19 202 200 220 210 193
215 222 216 228 207 225 208 195 191 207...
Independent random samples of professional football and basketball players gave the following information. Assume that the...
Independent random samples of professional football and
basketball players gave the following information. Assume that the
weight distributions are mound-shaped and symmetric.
Weights (in lb) of pro football players:
x1; n1 = 21
245
261
255
251
244
276
240
265
257
252
282
256
250
264
270
275
245
275
253
265
272
Weights (in lb) of pro basketball players:
x2; n2 = 19
203
200
220
210
192
215
222
216
228
207
225
208
195
191
207...
Independent random samples of professional football and basketball players gave the following information. Assume that the...
Independent random samples of professional football and
basketball players gave the following information. Assume that the
weight distributions are mound-shaped and symmetric.
Weights (in lb) of pro football players:
x1; n1 = 21
247
262
254
251
244
276
240
265
257
252
282
256
250
264
270
275
245
275
253
265
271
Weights (in lb) of pro basketball players:
x2; n2 = 19
205
200
220
210
193
215
222
216
228
207
225
208
195
191
207...
Independent random samples of professional football and basketball players gave the following information. Assume that the...
Independent random samples of professional football and
basketball players gave the following information. Assume that the
weight distributions are mound-shaped and symmetric.
Weights (in lb) of pro football players:
x1; n1 = 21
248
263
254
251
244
276
240
265
257
252
282
256
250
264
270
275
245
275
253
265
270
Weights (in lb) of pro basketball players:
x2; n2 = 19
202
200
220
210
193
215
222
216
228
207
225
208
195
191
207...
Part 1) Independent random samples of professional football and basketball players gave the following information. Assume...
Part 1) Independent random samples of professional football and
basketball players gave the following information. Assume that the
weight distributions are mound-shaped and symmetric.
Weights (in lb) of pro football players:
x1; n1 = 21
248
261
255
251
244
276
240
265
257
252
282
256
250
264
270
275
245
275
253
265
270
Weights (in lb) of pro basketball players:
x2; n2 = 19
203
200
220
210
191
215
221
216
228
207
225
208
195...
Independent random samples of professional football and basketball players gave the following information. Heights (in ft)...
Independent random samples of professional football and
basketball players gave the following information.
Heights (in ft) of pro football players:
x1; n1 = 45
6.34
6.50
6.50
6.25
6.50
6.33
6.25
6.17
6.42
6.33
6.42
6.58
6.08
6.58
6.50
6.42
6.25
6.67
5.91
6.00
5.83
6.00
5.83
5.08
6.75
5.83
6.17
5.75
6.00
5.75
6.50
5.83
5.91
5.67
6.00
6.08
6.17
6.58
6.50
6.25
6.33
5.25
6.67
6.50
5.84
Heights (in ft) of pro basketball players:
x2; n2 = 40...
Independent random samples of professional football and basketball players gave the following information. Heights (in ft)...
Independent random samples of professional football and
basketball players gave the following information.
Heights (in ft) of pro football players:
x1; n1 = 45
6.31
6.51
6.50
6.25
6.50
6.33
6.25
6.17
6.42
6.33
6.42
6.58
6.08
6.58
6.50
6.42
6.25
6.67
5.91
6.00
5.83
6.00
5.83
5.08
6.75
5.83
6.17
5.75
6.00
5.75
6.50
5.83
5.91
5.67
6.00
6.08
6.17
6.58
6.50
6.25
6.33
5.25
6.65
6.50
5.83
Heights (in ft) of pro basketball players:
x2; n2 = 40...
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