Please complete the following assignment. 1. Describe the difference between repairable and non-repairable items. What kind of effect might this difference have on reliability? List examples of repairable and non-repairable items in our everyday life. (10 points) 2. Explain the difference between reliability and durability and how they can be specified in a product development program. (10 points) 3. A space vehicle requires five out of its six main engines to operate in order to achieve orbit. If each engine has a reliability of 0.98, determine the reliability of achieving orbit. (20 points) 4. What is the probability of having not more than 20 but not less than 10 failures if n=100, p=0.14 for a binomial distribution? (20 points) 5. What is the probability of having not more than 20 but not less than 10 failures if n=100, p=0.14 for a normal distribution (mean=np, variance=npq)? (20 points) 6. In the question 3, we assume the six engines are independent. Please describe three factors that could invalidate this assumption. And how will it affect the results you have in question 3 if the independent assumption is invalid? (20 points)