Q1 (a) A factory manufactured PVC pipes with a mean diameter of 3.4 cm, a standarddeviation of 1.7 cm and is normally distributed. If 72 of PVC pipes are randomlyselected, what is the probability that the sample mean diameter of the pipes is lessthan 3.0 cm?

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Answered: (a) A factory manufactured PVC pipes…

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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(a) A factory manufactured PVC pipes with a mean diameter of 3.4 cm, a standard deviation of 1.7 cm and is normally distributed. If 72 of PVC pipes are randomly selected, what is the probability that the sample mean diameter of the pipes is les than 3.0 cm?