Tag Archives: MSE

Comparative Analysis of Some Selected Classes of Ratio Estimators (Published)

Many ratio type estimators for population mean have come into play in the past. Researchers over the years have been making efforts to improve the efficiency of thee estimators. There has been a lot of modification of some of these estimators. Some forms of comparison have been done in the literature. There is need to further compare these estimators with other existing estimators at varying sample sizes and also considering discrete and continuous distribution. Thirty-eight estimators, five different sample sizes and seven distributions were considered. The population mean estimates and their Bias were computed for the thirty- eight estimators at varying sample sizes under various distribution. The efficiency of the estimator was computed using Mean Square Error (MSE). Using simulation study, it was observed that the efficiency of the estimators increase as sample sizes increases and the estimator performed alike in most distributions

Keywords: Auxiliary variable, Bias, Constants, Estimators, MSE, Mean, Sampling


Micro and small scale enterprises have been accepted worldwide as instrument of economic growth and development. No wonder that government, particularly in the developing countries has made tremendous efforts and establish policies to enhance the capacity of micro and small scale enterprises (MSEs). However, despite government institutional and policies support to enhancing the capacity of small and medium scale enterprises, small and medium scale enterprises has fallen short of expectations. This, then, generated serious concern and skepticism on whether SMEs can bring about economic growth and national developments in Ghana. SMEs are faced with significant challenges that compromise their ability to function and to contribute optimally to the economy. Most business enterprises in Ghana by classification are grouped under micro and small scale enterprises, hence, the scope of study. The phenomenal growth of small and medium enterprise in Ghana is mainly due to the people’s quest to be self-employed and not because it is easy to establish or manage. Financial constraints and lack of management skill hamper the efficient performance of micro and small scale enterprises in Ghana. In view of this, we recommend that government and other non-governmental organization should regularly organize seminars for potential and actual small and medium enterprise operators on how to plan, organize, direct and control their businesses, and that micro, small and medium enterprises operators’ should device effective marketing strategies and good management customers relations at all times.

Keywords: Development, Ghana, MSE, Problems, Prospect