Question

In: Statistics and Probability

Produce a 90% confidence prediction-interval for the cracker sales in a store where the category sales...

Produce a 90% confidence prediction-interval for the cracker sales in a store where the category
sales is 1005. Also produce a 90% confidence prediction-interval for sales in a store
where category sales is only 900. Write down the two intervals obtained. Now answer:
Can you determine with 90% confidence which store has higher cracker sales?

CategorySales Sales
1033 336
1043 290
1044 336
1053 295
1054 296
1055 354
1063 346
1067 328
1071 346
1485 381
1091 345
1095 338
1096 357
1096 321
1097 326
1099 340
1107 318
1108 370
1109 338
1110 388
1116 315
1118 341
1124 312
1124 355
1127 362
1127 328
1127 350
1130 346
1132 341
1134 351
1141 327
1143 371
1147 361
1149 320
1150 378
1150 352
1151 340
1157 346
1158 391
1164 364
1173 353
1173 347
1178 371
1184 390
1187 365
1306 395
1190 313
1193 364
1196 349
1197 330
1198 343
1204 367
1206 350
1208 385
1208 364
1211 329
1213 381
1213 380
1214 391
1214 367
1215 357
1218 386
1226 365
1228 361
1230 335
1230 341
1238 378
1238 376
1238 375
1241 372
1241 386
1248 353
1251 344
1253 375
1261 352
1263 368
1264 377
1275 359
1277 358
1278 368
1280 371
1281 374
1282 361
1285 402
1286 370
1291 371
1294 356
1297 375
1301 411
1305 370
1317 365
1320 375
1328 360
1332 359
1339 406
1348 394
1353 369
1357 371
1381 408
1401 372
1409 370
1436 358
1500 352
1459 396

Solutions

Expert Solution

orchestra answered 2 years ago
Next > < Previous

Related Solutions

Explain the difference between a confidence interval and a prediction interval?
Explain the difference between a confidence interval and a prediction interval?
If n = 300 and X = 90, construct a 90% confidence interval estimate of the...
If n = 300 and X = 90, construct a 90% confidence interval estimate of the population proportion. (answer) < pie < (answer) Note: the "< " listed above are suppos to be underlined.  
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak...
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak AA batteries is ( 410, 470 ). Assume that this result is based on a sample of size 15 . 2) What is the value of the sample standard deviation? 66.2785 65.9677 86.6694 86.3843 3) Construct the 99% confidence interval. (389.2961,490.7039) (395.2976,484.7024) (414.8193,465.1807) (417.1658,462.8342) Tries 0/2 4) If the confidence interval (414.0575 ,465.9425) is obtained from the same sample data, what is the degree...
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak...
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak AA batteries is ( 400, 440 ). Assume that this result is based on a sample of size 25 . 1) What is the value of the sample mean? Incorrect 440 Correct: 420 Incorrect 415 Incorrect 425 Incorrect 410 You are correct. Your receipt no. is 159-3963 Previous Tries 2) What is the value of the sample standard deviation? 58.4494 75.8820 75.9679 58.5432 Tries...
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak...
A 90 % confidence interval (a t interval) for the mean lives (in minutes) of Kodak AA batteries is ( 480, 520 ). Assume that this result is based on a sample of size 25 a. value of sample standard deviation b. 99% confidence interval c. If the confidence interval (482.6156 ,517.3844) is obtained from the same sample data, what is the degree of confidence?
For each of the following questions, determine which kind of prediction confidence interval is appropriate. a)....
For each of the following questions, determine which kind of prediction confidence interval is appropriate. a). Predict the humidity level in this greenhouse tomorrow when we set the temperature level at 31 °C? b). Predict how much do families spend, on the average, on meals? Suppose the family income is $50,000 c). Predict how many kilowatt-hours of electricity will be consumed in September by commercial and industrial users in the Twin Cities service area, given that the index of business...
A 90% confidence interval for a population mean, μ, is given as (21.73, 24.64). This confidence...
A 90% confidence interval for a population mean, μ, is given as (21.73, 24.64). This confidence interval is based on a simple random sample of 41 observations. Calculate the sample mean and standard deviation. Assume that all conditions necessary for inference are satisfied. Use the t- distribution in any calculations.
Construct the confidence interval for the standard deviations of weights of men: 90% confidence; n =...
Construct the confidence interval for the standard deviations of weights of men: 90% confidence; n = 14, = 163.5 lb, s = 11.2 lb Please write neatly
Determine the limits of the 90% confidence interval for , given that n = 455; and...
Determine the limits of the 90% confidence interval for , given that n = 455; and p = 0.11.
A newsgroup is interested in constructing a 90% confidence interval for the difference in the proportions...
A newsgroup is interested in constructing a 90% confidence interval for the difference in the proportions of Texans and New Yorkers who favor a new Green initiative. Of the 506 randomly selected Texans surveyed, 436 were in favor of the initiative and of the 525 randomly selected New Yorkers surveyed, 459 were in favor of the initiative. a. With 90% confidence the difference in the proportions of Texans and New Yorkers who favor a new Green initiative is between _______...
ADVERTISEMENT
Subjects
ADVERTISEMENT
Latest Questions
ADVERTISEMENT