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(a) Construct an 80% 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. An 80% confidence interval for the decrease in the defective rate after the reconfiguration is

(a) Construct an 80% 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. An 80% confidence interval for the decrease in the defective rate after the reconfiguration is

Linear Algebra: A Modern Introduction
Linear Algebra: A Modern Introduction
4th Edition
ISBN:9781285463247
Author:David Poole
Publisher:David Poole
Chapter2: Systems Of Linear Equations
Section2.4: Applications
Problem 27EQ
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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 989 boards were produced the week before the reconfiguration was implemented, and 265 of these were defective. A total of 847 boards were produced the week after reconfiguration, and 194 of these were defective. Part: 0 / 2 Part 1 of 2 (a) Construct an 80% 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. An 80% confidence interval for the decrease in the defective rate after the reconfiguration is <P1-P2<
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 989 boards were produced the week before the reconfiguration was implemented, and 265 of these were defective. A total of 847 boards were produced the week after reconfiguration, and 194 of these were defective. Part: 0 / 2 Part 1 of 2 (a) Construct an 80% 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. An 80% confidence interval for the decrease in the defective rate after the reconfiguration is <P1-P2<
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