We need to provide a Descriptive and Comparative analysis for a certain data set. I finalized in choosing Apple and Microsoft. I gathered stock market trend on a monthly basis for the year 2008 - 2020 in Yahoo Finance and prepared graphs like boxplot, line graphs, histogram for the visualization of both. We will also be required to do t-test analysis, test statistics and linear regression. We focus on the data of the adjusted close.

Please write me the part for methodology, including the paragraph for data source, KPI and Theory (model) for replication analysis