What is the probability of an incorrect conclusion? Round your answer to the nearest tenth of a percent.

Question

A quality assurance check is 91% accurate for non-defective devices and 97% accurate for defective devices. Of the devices checked, 84% are not defective. 

Answer 1

91% of 84% = .91*.84 = .7644 = 76.44%

 

So 84 - 76.44 = .0756 = 7.56% of them labeled as not defective 

are actually defective