Journal of Probability and Statistics / 2009 / Article / Tab 1

Research Article

On the Existence and Uniqueness of the Maximum Likelihood Estimators of Normal and Lognormal Population Parameters with Grouped Data

Table 1

Grouped data: , , , , .

S.S

Average A.W. C.R. Average A.W. C.R.

30 21.992 33.374 90.9% 245.490 1517.67470.7%
35 21.665 31.882 91.7% 229.715 2810.49078.8%
40 21.441 29.207 92.9% 231.326 2356.41281.4%
50 21.211 25.697 93.4% 222.684 1632.30182.9%
100 20.614 17.983 94.5% 199.014 647.06585.6%

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