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? OUT
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? OUT
Glencoe Algebra 1, Student Edition, 9780079039897, 0079039898, 2018
18th Edition
ISBN:9780079039897
Author:Carter
Publisher:Carter
Chapter10: Statistics
Section10.4: Distributions Of Data
Problem 19PFA
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