Test 0/ components Imagine a component production chain whose yield is y = 90%. We suppose that we apply a test sequence to each produced component (test of 100% of the components). This sequence has n test vectors, each one having a duration of 1 time unit. The sequence has a coverage rate of c = 80% of faults of the fault model considered. We also assurne that the defective components are detected on average after nl2 test vectors.

1. Determine and analyze the expression of the average test length.

2. Calculate the rate of defective produced components wh ich are declared as 'good' by the test.

3. We now suppose that only t = 70% of the produced components are tested. Refer to the previous two questions.