1. Role a sample plays in making statistical inferences about the population
The sample plays an essential role in the process of making statistical inferences about the population. Ordinarily, the entire population is usually too large to be fully studied. The limitations that limit study of an entire population include costs, time and convenience in the application of the study modes. A sample from the entire population is selected. It is assumed that the sample would be representative of the entire population and contains minimum bias towards any aspect of the population. The sample, therefore, forms the basis on which the population characteristics are inferred. The researchers assume that the characteristics ...
