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# The article Influence of Penetration Rate on Penetrometer Resistance (J. Oliveira, M

ISBN: 9780073401331 38

## Solution for problem 12 Chapter 5.3

Statistics for Engineers and Scientists | 4th Edition

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Problem 12

The article Influence of Penetration Rate on Penetrometer Resistance (J. Oliveira, M. Almeida, et al., Journal of Geotechnical and Geoenvironmental Engineering, 2011:695703) presents measures of penetration resistance for a certain fine-grained soil. Fifteen measurements, expressed as a multiple of a standard quantity, had a mean of 2.64 and a standard deviation of 1.02. Find a 95% confi- dence interval for the mean penetration resistance for this soil.

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Week 8: Normal Distribution 25 October 2016 Basic Statistics for Research Professor HK Dong Wendy Liu Probability density function f(x) – describes the distribution of probability for the continuous random variable. It has the properties  The total area under the probability density curve is 1  area under the probability density curve between a and b ...

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