The concentration of a certain active agent in a liquid form of a pesticide must not exceed 12 parts per million. The pesticide is made up in batches in which the concentration varies normally between batches, with mean 8 parts per million and standard deviation 1-5 parts per million. What proportion of batches exceeds the permitted maximum? If two batches are mixed equally by volume the resulting concentration is the average of the two concentrations in the constituent batches. What proportion of such mixed samples exceeds the permitted maximum? What proportion falls below 3 parts per million (the level at which the pesticide ceases to have any effect)?
The concentration of a certain active agent in a liquid form of a pesticide must not exceed 12 parts per million. The pesticide is made up in batches in which the concentration varies normally between batches, with mean 8 parts per million and standard deviation 1-5 parts per million. What proportion of batches exceeds the permitted maximum? If two batches are mixed equally by volume the resulting concentration is the average of the two concentrations in the constituent batches. What proportion of such mixed samples exceeds the permitted maximum? What proportion falls below 3 parts per million (the level at which the pesticide ceases to have any effect)?
MATLAB: An Introduction with Applications
6th Edition
ISBN:9781119256830
Author:Amos Gilat
Publisher:Amos Gilat
Chapter1: Starting With Matlab
Section: Chapter Questions
Problem 1P
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Transcribed Image Text:The concentration of a certain active agent in a liquid form of a pesticide must not exceed 12
parts per million. The pesticide is made up in batches in which the concentration varies
normally between batches, with mean 8 parts per million and standard deviation 1:5 parts per
million. What proportion of batches exceeds the permitted maximum?
If two batches are mixed equally by volume the resulting concentration is the average of the
two concentrations in the constituent batches. What proportion of such mixed samples exceeds
the permitted maximum? What proportion falls below 3 parts per million (the level at which
the pesticide ceases to have any effect)?
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