6) Ten units have been tested and the equipment failure data are given below. Number of Units Failing Hours Before Failure 2 10 1 19 2 38 1 50 2 89 1 130 1 160 a) Using the special graph paper, determine whether the data exhibit a constant or a non-constant failure rate. (10 points) Exponential Weibull Zac Warden IET 33620 09/28/21 b) From the graph, MARK and show the MTBF. Also enter your answer below. (5 points) MTBF c) According to your graph, if the company elects to perform PM at 75 hour intervals, what would be the expected system reliability? (5 points) % d) Based on your graph, what PM interval would you recommend to achieve a 90% system reliability? (5 points) Hours e) From the data given in the Table above, calculate the system failure rate. (5 points) 6) Ten units have been tested and the equipment failure data are given below. Number of Units Failing Hours Before Failure 2 10 1 19 2 38 1 50 2 89 1 130 1 160 a) Using the special graph paper, determine whether the data exhibit a constant or a non-constant failure rate. (10 points) Exponential Weibull Zac Warden IET 33620 09/28/21 b) From the graph, MARK and show the MTBF. Also enter your answer below. (5 points) MTBF c) According to your graph, if the company elects to perform PM at 75 hour intervals, what would be the expected system reliability? (5 points) % d) Based on your graph, what PM interval would you recommend to achieve a 90% system reliability? (5 points) Hours e) From the data given in the Table above, calculate the system failure rate. (5 points)