Problem 2: (257) Testing of an electric starter switch was accelerated from a normal rate of 5 cycles per hour to an accelerated rate of 1 cycle of every 20 seconds. At the accelerated rate, failure times were Weibull with an estimated shape parameter, =1.8, and an estimated characteristic life, &= 5000 hours. (a) What is the reliability of the switch under normal use over a I-year period (24 hours a day)? (b) Under the accelerated condition, what is the expected test time in order to have 5 failed units with 200 units placed on test without replacement? () Under the normal use condition, what is the expected test time in order to have 5 failed units with 200 units placed on test with replacement