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Defective electronics: A team of designers was given the task of reducing the defect rate in the manufacture of a certain printed circuit board. The team deci to reconfigure the cooling system. A total of 970 boards were produced the week before the reconfiguration was implemented, and 258 of these were defecti A total of 851 boards were produced the week after reconfiguration, and 171 of these were defective. Part: 0 / 2 Part 1 of 2

Defective electronics: A team of designers was given the task of reducing the defect rate in the manufacture of a certain printed circuit board. The team deci to reconfigure the cooling system. A total of 970 boards were produced the week before the reconfiguration was implemented, and 258 of these were defecti A total of 851 boards were produced the week after reconfiguration, and 171 of these were defective. Part: 0 / 2 Part 1 of 2

MATLAB: An Introduction with Applications
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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Defective electronics: A team of designers was given the task of reducing the defect rate in the manufacture of a certain printed circuit board. The team decided to reconfigure the cooling system. A total of 970 boards were produced the week before the reconfiguration was implemented, and 258 of these were defective. A total of 851 boards were produced the week after reconfiguration, and 171 of these were defective. Part: 0 / 2 Part 1 of 2 (a) Construct a 90% confidence interval for the decrease in the defective rate after the reconfiguration. Use tables to find the critical value and round the answer to at least three decimal places. A 90% confidence interval for the decrease in the defective rate after the reconfiguration is <P1-P₂< X
Transcribed Image Text:Defective electronics: A team of designers was given the task of reducing the defect rate in the manufacture of a certain printed circuit board. The team decided to reconfigure the cooling system. A total of 970 boards were produced the week before the reconfiguration was implemented, and 258 of these were defective. A total of 851 boards were produced the week after reconfiguration, and 171 of these were defective. Part: 0 / 2 Part 1 of 2 (a) Construct a 90% confidence interval for the decrease in the defective rate after the reconfiguration. Use tables to find the critical value and round the answer to at least three decimal places. A 90% confidence interval for the decrease in the defective rate after the reconfiguration is <P1-P₂< X
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