Στατιστική ανάλυση δεδομένων πωλήσεων φυσικών χυμών σε περιοχή των Η.Π.Α.
Scope of this master thesis is the statistical data analysis of orange juice sales in Chicago area. In the introductory chapter, the world juice market is briefly presented and linked to the objective of the thesis regarding orange juices sales. In chapter 2, all Statistic terms, tools and methodologies that are subsequently used for data analysis are introduced and explained: main graphical and numerical methods of descriptive statistics, linear and multiple regression and analysis of variance (ANOVA). In chapter 3, the available data as well as the whole structure of the following analysis are presented. In chapter 4, follows the main data analysis through the aforementioned tools. First, the sales distribution is depicted and then the impact of price, advertising, brand and demographic features is calculated in order to investigate how these factors affect orange juice sales over time. Furthermore, in order to interpret the sales differentiations, the creation of a single model is attempted. In the final chapter, after taking into account the results of the previous analysis, all the conclusions are presented followed by suggestions for future research.