Defective electronics: A team of designers was given the

Last updated: 7/7/2022

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 987 boards were produced the week before the reconfiguration was implemented, and 254 of these were defective. A total of 847 boards were produced the week after reconfiguration, and 161 of these were defective. (a) Construct a 99.5% 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 99.5% confidence interval for the decrease in the defective rate after the reconfiguration is