The breaking strength of a fibre is required to be 1.50bar. Past experience has indicated that the standard deviation of breaking strength is 0.03bar. A random sample of 40 specimens is tested and the average breaking strength is observed to be 1.48bar. Calculate a 95% confidence interval for the mean breaking strength. Should the fibre be judged acceptable

The breaking strength of a fibre is required to be 1.50bar. Past experience has indicated that the standard deviation of breaking strength is 0.03bar. A random sample of 40 specimens is tested and the average breaking strength is observed to be 1.48bar. Calculate a 95% confidence interval for the mean breaking strength. Should the fibre be judged acceptable

Advanced Engineering Mathematics

10th Edition

ISBN:9780470458365

Author:Erwin Kreyszig

Publisher:Erwin Kreyszig

Chapter2: Second-order Linear Odes

Section: Chapter Questions

Problem 1RQ

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