If the acceptable roughness parameter variability is 20% (i.e., the coefficient of variation COV = 20%) and the sample mean from a pilot study has been found to be 1,000. Assuming a 95% confidence level and acceptable margin of precision in measurement is 200 (Rα = 200), determine the minimum number of roughness measurements to be recorded at each test segment. b) If the available budget is sufficient to conduct only one test at each segment, what is the range of accuracy obtained at the 95% level of confidence? On the other hand, if the accuracy range is maintained at 200, what would be the expected level of confidence?

If the acceptable roughness parameter variability is 20% (i.e., the coefficient of variation COV = 20%) and the sample mean from a pilot study has been found to be 1,000. Assuming a 95% confidence level and acceptable margin of precision in measurement is 200 (Rα = 200), determine the minimum number of roughness measurements to be recorded at each test segment. b) If the available budget is sufficient to conduct only one test at each segment, what is the range of accuracy obtained at the 95% level of confidence? On the other hand, if the accuracy range is maintained at 200, what would be the expected level of confidence?

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

Section: Chapter Questions

Problem 1.1P: a. How many different 7-place license plates are possible if the first 2 places are for letters and...

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