In a research work we oftenly have to interpret the data collected during the study. Several computer software are available for the use of analyzing those data including Statistical Packages for the Social Sciences (SPSS), Biomedical Programs (BMDP), Epi-info, and Minitab. However, problem usually arise because of the misinterpretation or misreading of the results provided bu those sofware. Th…
It has been printed out many times that sampling is very important in describing a population, even using a quota sampling technique is not adequate to draw a conclusion on the situation. To obtain result which may represent a population a technique such as probability sampling has to be used. In this technique each sample unit taken from the population has an equal chance and probability to be…