2. Metal conduits or hollow pipes are used in electrical wiring. In testing 1-inch pipes, these data are obtained on the outside diameter (in inches) of the pipe: 1.281 1.293 1.287 1.286 1.288 1.293 1.291 1.295 1.292 1.291 1.290 1.296 1.289 1.289 1.286 1.291 1.291 1.288 1.289 1.286 Assume that the sampling is from a normal distribution. Find a 95% confidence interval on the mean outside diameter of pipes of this type.
2. Metal conduits or hollow pipes are used in electrical wiring. In testing 1-inch pipes, these data are obtained on the outside diameter (in inches) of the pipe: 1.281 1.293 1.287 1.286 1.288 1.293 1.291 1.295 1.292 1.291 1.290 1.296 1.289 1.289 1.286 1.291 1.291 1.288 1.289 1.286 Assume that the sampling is from a normal distribution. Find a 95% confidence interval on the mean outside diameter of pipes of this type.
Elements Of Electromagnetics
7th Edition
ISBN:9780190698614
Author:Sadiku, Matthew N. O.
Publisher:Sadiku, Matthew N. O.
ChapterMA: Math Assessment
Section: Chapter Questions
Problem 1.1MA
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Question
![2. Metal conduits or hollow pipes are used in electrical wiring. In testing 1-inch pipes, these data
are obtained on the outside diameter (in inches) of the pipe:
1.281
1.293
1.287 1.286
1.288
1.293
1.291
1.295
1.292
1.291
1.290
1.296
1.289
1.289
1.286
1.291
1.291
1.288
1.289
1.286
Assume that the sampling is from a normal distribution. Find a 95% confidence interval on the mean
outside diameter of pipes of this type.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F943a5cf5-3701-4899-8c0e-e6990814efa4%2Ff73cb3ec-8a84-48e7-9b11-f98f28acaf5c%2Fxl9lpvw_processed.png&w=3840&q=75)
Transcribed Image Text:2. Metal conduits or hollow pipes are used in electrical wiring. In testing 1-inch pipes, these data
are obtained on the outside diameter (in inches) of the pipe:
1.281
1.293
1.287 1.286
1.288
1.293
1.291
1.295
1.292
1.291
1.290
1.296
1.289
1.289
1.286
1.291
1.291
1.288
1.289
1.286
Assume that the sampling is from a normal distribution. Find a 95% confidence interval on the mean
outside diameter of pipes of this type.
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