UTMUTM3. 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?UTMUTMUTUTM

Denote the random variable X as the duration. Thus, X~ N (µ, σ=5.8).

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

A First Course in Probability (10th Edition)

10th Edition

ISBN:9780134753119

Author:Sheldon Ross

Publisher:Sheldon Ross

Chapter1: Combinatorial Analysis

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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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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?