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During a life expectance test of 20 light bulbs, the failure time are recorded as 4, 6, 18, 42, 50, ... (hours). Formulate the

During a life expectance test of 20 light bulbs, the failure time are recorded as 4, 6, 18, 42, 50, ... (hours). Formulate the following tables from the failure data e. Failure density function, f(t) f hazard function, Z(t) g. Failure cumulative distribution function, F(t) h. Success rate (Reliability), R(t) i. Mean Time To Fail, MTTF j. The Overall Mean Time To Fail, MTTF (overall) Failure Hazard Reliability Time interval Cumulative Distribution MTTF Density f(t) Rate (hrs) F(t) MTTF Z(1) R(t) (overall) 10 20 30 40 50

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