Descriptive and Inferential Statistics Essay

714 Words Jul 4th, 2012 3 Pages
When faced with an analysis of a situation which deals with a population, an analyzer will incorporate both descriptive and inferential statistics to evaluate his or her results and create a credible conclusion. Descriptive statistics provides information focused on an immediate group of data. After defining what needs to be analyzed, the descriptive statistics will help the analyzer abridge the data to a more meaningful and comprehendible form, which will then provide patterns in his or her research that, will provide a foundation to his or her thesis. For example, a person could use descriptive statistics to evaluate the answers on an exam taken by 400 American students, and use descriptive statistics to determine the overall performance …show more content…
However, if he or she would like to observe and compare the progress of the 400 American students with the progress of 400 students located in another country, such as Europe, he or she will then take samples of credible data to draw a conclusion. The analyzer will need samples which include information from the exact grade levels of the 400 students in Europe to match the 400 American students which were given the initial exam. In addition, the 400 students in Europe will have to take the same exact exam in which the original students was given, so the analyzer can take the sampled information of the 400 European students and compare and contrast the data of the 400 American students in which the descriptive statistical data was taken . The analyzers inferential statistics will ascend through credible sampling which on occasion, may sustain sampling error. Therefore the analyzer must estimate each parameter and test his or her statistical hypotheses to create a credible conclusion which will more likely stand as the average percentage in the data of interest. The data will provide the analyzer with an average of population involving the 400 American students and 400 European students which will fall in the categories of percentage of progression, percentage of students who need improvement, and ethnicity. The

Related Documents