34 A MIL-HDBK-781A 20% consumer risk reliability demonstration test calls for demonstrating a lower test MTBF of 1000 hours, and is structured to accept on 2 failures, and reject on more than 2 failures. Match the following phrases related to that test to the proper answer. - Test length multiplier (of lower test MTBF) - Actual MTBF that producer needs to also have a 20% risk - Discrimination ratio for producer's risk of 10% - Test length A. 3.88 B. 4280 hours C. 4.28 D. 2790 hours E. 2.24