Statistics for Engineers and Scientists - With Access
4th Edition
ISBN: 9781259275975
Author: Navidi
Publisher: MCG
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Textbook Question
Chapter 5.6, Problem 1E
In a study comparing various methods of gold plating, 7 printed circuit edge connectors were gold-plated with control-immersion tip plating. The average gold thickness was 1.5 μm, with a standard deviation of 0.25 μm. Five connectors were masked and then plated with total immersion plating. The average gold thickness was 1.0 μm, with a standard deviation of 0.15 μm. Find a 99% confidence interval for the difference between the mean thicknesses produced by the two methods.
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Chapter 5 Solutions
Statistics for Engineers and Scientists - With Access
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