From: Perturbative method for maximum likelihood estimation of the Weibull distribution parameters
Simulated data set provided by Balakrishnan and Mitra (2012) No. | Installation year | Failure year | No. | Installation year | Failure year | No. | Installation year | Failure year | No. | Installation year | Failure year |
---|---|---|---|---|---|---|---|---|---|---|---|
1 | 1984 | – | 26 | 1986 | – | 51 | 1982 | – | 76 | 1974 | 2006 |
2 | 1990 | 2001 | 27 | 1987 | – | 52 | 1981 | – | 77 | 1978 | 1995 |
3 | 1983 | 2002 | 28 | 1990 | 1997 | 53 | 1986 | – | 78 | 1962 | 1993 |
4 | 1981 | 2000 | 29 | 1980 | 1996 | 54 | 1980 | 1990 | 79 | 1963 | – |
5 | 1985 | – | 30 | 1980 | – | 55 | 1980 | 1994 | 80 | 1960 | 1998 |
6 | 1991 | – | 31 | 1981 | – | 56 | 1982 | – | 81 | 1962 | 2007 |
7 | 1982 | – | 32 | 1983 | 1997 | 57 | 1990 | 2008 | 82 | 1960 | 1990 |
8 | 1990 | – | 33 | 1980 | – | 58 | 1985 | – | 83 | 1962 | 1980 |
9 | 1983 | 1999 | 34 | 1984 | – | 59 | 1983 | – | 84 | 1961 | 1981 |
10 | 1992 | – | 35 | 1982 | – | 60 | 1982 | – | 85 | 1964 | 1989 |
11 | 1983 | – | 36 | 1980 | – | 61 | 1963 | 1996 | 86 | 1964 | 1987 |
12 | 1989 | – | 37 | 1985 | 2007 | 62 | 1963 | 2001 | 87 | 1960 | 2006 |
13 | 1985 | – | 38 | 1993 | – | 63 | 1961 | 1998 | 88 | 1961 | 1992 |
14 | 1982 | – | 39 | 1983 | – | 64 | 1961 | 1992 | 89 | 1964 | – |
15 | 1983 | – | 40 | 1980 | – | 65 | 1960 | 1984 | 90 | 1963 | 1991 |
16 | 1981 | – | 41 | 1981 | 2001 | 66 | 1964 | 2004 | 91 | 1973 | – |
17 | 1985 | – | 42 | 1989 | – | 67 | 1961 | 1994 | 92 | 1964 | – |
18 | 1981 | – | 43 | 1993 | – | 68 | 1977 | 1998 | 93 | 1972 | 1984 |
19 | 1988 | 2002 | 44 | 1983 | – | 69 | 1963 | 1987 | 94 | 1962 | 2007 |
20 | 1983 | – | 45 | 1993 | – | 70 | 1960 | 1991 | 95 | 1963 | 1997 |
21 | 1984 | – | 46 | 1987 | – | 71 | 1961 | 1983 | 96 | 1964 | 1987 |
22 | 1989 | – | 47 | 1994 | – | 72 | 1964 | 1995 | 97 | 1964 | 2002 |
23 | 1988 | – | 48 | 1985 | 2007 | 73 | 1963 | 1998 | 98 | 1971 | – |
24 | 1982 | – | 49 | 1981 | – | 74 | 1961 | 2001 | 99 | 1965 | 1990 |
25 | 1981 | – | 50 | 1983 | 2004 | 75 | 1960 | 1988 | 100 | 1962 | 1994 |