R

2) A process is in control with a defect rate of 0.2%. A sampling plans calls for 30 items to be

selected at random, and for the process to be shut down and corrected if any defects are found. How

often will the process be shut down without a change in the defect rate ?

A. 1.22% of the time B. 5.83% of the time C. 3.91% of the time D. None of the above

Answer : B

I would really appreciate if someone could help me out with the solutions... The exam is this coming saturday