Six items were tested to failure. test cycles are 1025, 1550, 2232, 3786, 5608 and 7918 respectively.
a. Determine the failure rate.
b. Determine the mean life, assuming that the failure rate is constant.
c. Determine the reliability at t = 4250 cycles.
d. If the mean life of the item is 3500 cycles with a standard deviation of 250 cycles, what is the reliability at 5500 cycles