Practical information regarding the vendors

Reference no: EM131015156

A vendor has historically had a 15% defective rate on a particular part. They claim to have improved their process and provide their customer 10 units to be tested. The test is a pass/fail destructive test. All units pass the test.

(a) What is the probability of observing no defectives in this sample under the historical 15% defective rate?

(b) Suppose the defective rate had been reduced to 10%, now what is the probability of no defectives in this sample?

(d) Is a sample of size 10 large enough to provide any practical information regarding the vendors supposed process improvement?

Reference no: EM131015156

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