Question Number (3)ENGINEERING STATISTICS Civil Engineering 3. The thickness of a road is normally distributed with standard deviation 5.8 cm. A randomsample of 15 roads were taken. If the probability that the sample mean road thickness is atleast 10.2 cm is 0.82, what is the average thickness of all the roads?TM

Given taht n =15,s.d =5.8, x bar =10.2

Answered: 3. The thickness of a road is normally…

MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

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3. The thickness of a road is normally distributed with standard deviation 5.8 cm. A random sample of 15 roads were taken. If the probability that the sample mean road thickness is at least 10.2 cm is 0.82, what is the average thickness of all the roads?