Method of Product Spacings in the Two-Parameter Gamma Distribution
M. Rahman, L.M. Pearson, and U.R. Martinovic (2007). Method of Product Spacings in the Two-Parameter Gamma Distribution. Journal of Statistical Research, Vol. 41, No. 1, pp. 51-58.
Abstract
The Gamma Distribution is widely used in Engineering and Industrial applications. Estimation of parameters is revisited in the two-parameter Gamma distribution. The method of product spacings is implemented to this distribution. A comparative study between the method of moments, the maximum likelihood method, and the method of product spacings is performed using simulation. For the scale parameter, the maximum likelihood estimate performs better and for the shape parameter, the product spacings estimate performs better.