Amachine is used to manufacture certain items, one at a time. Manufacturing time for one item is random, well described with normal distribution with average 17.7 minutes and standard deviation 1.5 minutes. The machine works autonomously, but requires occasional manual calibration. Suppose that manual calibration may be required after finishing an item with probability 46.9% independently of any other items. Find the standard deviation for the time between two consecutive calibrations.

Amachine is used to manufacture certain items, one at a time. Manufacturing time for one item is random, well described with normal distribution with average 17.7 minutes and standard deviation 1.5 minutes. The machine works autonomously, but requires occasional manual calibration. Suppose that manual calibration may be required after finishing an item with probability 46.9% independently of any other items. Find the standard deviation for the time between two consecutive calibrations.

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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