An electrochemical engineer has manufactured a new type of fuel cell (a type of battery) which has to undergo testing to prove its duration: the time it takes to go from fully charged to completely uncharged, under a fixed nominal load. From the computational
An electrochemical engineer has manufactured a new type of fuel cell (a type of battery) which has to undergo testing to prove its duration: the time it takes to go from fully charged to completely uncharged, under a fixed nominal load. From the computational
A First Course in Probability (10th Edition)
10th Edition
ISBN:9780134753119
Author:Sheldon Ross
Publisher:Sheldon Ross
Chapter1: Combinatorial Analysis
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An electrochemical engineer has manufactured a new type of fuel cell (a type of battery)
which has to undergo testing to prove its duration: the time it takes to go from fully
charged to completely uncharged, under a fixed nominal load. From the computational simulation models she has, the variance of the duration is σ2 = 4 h2 (hours squared)
but she wants to estimate the mean duration time μ. To achieve this she is determined
to do the tests multiple times in independent but identical conditions. Can you find
what is the smallest number of these tests that she has to do in order for her estimated
mean duration to be within ±0.2 h tolerance of the true mean with 95% certainty
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