CIMA P2 Question Answer
IOP's product is manufactured using a production process that is known to have a defect rate of 10%.
IOP's quality control department has developed a test that has a 98% probability of classifying a non-defective item correctly and a 2% probability of classifying a non-defective item as defective.
The same test has a 95% probability of classifying a defective item correctly and a 5% probability of classifying a defective item as non-defective.
Calculate the proportion of IOP's output that will be classified as non-defective by the quality control department's test.
Give your answer to one decimal place.

