Statistical Study

A statistical study is a process in which data are analyzed to find answers to questions about a population parameter. The process includes determining the purpose of the study, selecting a representative sample of the population using sampling methods, calculating statistics, and making inferences about the population.

The reason for using samples is that it is almost impossible to collect data from every member of the population due to constraints such as time and money. The findings of a sample can be used to make inferences about the population as long as appropriate sampling procedures are used.

A poorly chosen sample may result in biased results and misinterpretations about the population. This can be avoided by using random sampling to ensure that data from the sample is typical of the population. Data collection can be done using methods such as survey, experiment, observational study. The best way to collect data can be determined based on the study's purpose.