A production manager of a computer supplier company claims that circuit board Model C20- S produced by the company has a failure rate of 30% on a thermal cycling test. The thermal cycling test is known to cause failures in boards with weak circuit connections. Given that a 97% confidence interval for the true percentage for the failure of circuit boards is (0.1814,0.2986). i) Calculate the estimation error made in estimating the true percentage for the failure of circuit boards using the given confidence interval. Use confidence interval approach to test the production manager's claim.
A production manager of a computer supplier company claims that circuit board Model C20- S produced by the company has a failure rate of 30% on a thermal cycling test. The thermal cycling test is known to cause failures in boards with weak circuit connections. Given that a 97% confidence interval for the true percentage for the failure of circuit boards is (0.1814,0.2986). i) Calculate the estimation error made in estimating the true percentage for the failure of circuit boards using the given confidence interval. Use confidence interval approach to test the production manager's claim.
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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