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...

Extracted 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 972 boards were produced the week before the reconfiguration was implemented, and 257 of these were defective. A total of 844 boards were produced the week after reconfiguration, and 183 of these were defective. Part: 0 / 2 Part 1 of 2 (a) Construct a 99.9% 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 99.9% confidence interval for the decrease in the defective rate after the reconfiguration is >?d _ 'd> [ MacBook Ai DII DD 80 888 F11 F9 F10 F7 F8 F5 F6 F3 F4