1. A pump used in large quantities in a sewage works is causing problems owing to sudden and complete failures. There are two dominant failure modes, impeller failure (I) a. b. and motor failure (M). These modes are thought to be independent. Records were kept for 12 of these pumps, as follows: Pump no Age at failure (h) Failure mode 1180 6320 1030 120 2800 970 2150 10 1600 12 1090 Use the provided example MATLAB code in d2L to estimate Weibull parameters for each mode of failure. 1. A pump used in large quantities in a sewage works is causing problems owing to sudden and complete failures. There are two dominant failure modes, impeller failure (I) a. b. and motor failure (M). These modes are thought to be independent. Records were kept for 12 of these pumps, as follows: Pump no Age at failure (h) Failure mode 1180 6320 1030 120 2800 970 2150 10 1600 12 1090 Use the provided example MATLAB code in d2L to estimate Weibull parameters for each mode of failure