Reflection of Project 2
By conducting this project, I have learned how to use Rstudio to perform inference statistical analysis such as hypothesis testing, correlation analysis, regression analysis, and ANOVA test on the selected data set. The topic we choose is related to the latest Covid-19 cases and the purpose of this study is to determine the relationship between total cases, total deaths, total recovered and active cases of covid-19 in different countries. By using Rstudio, it is easier for me to calculate the result for all the tests. This is because the size of the dataset of our group is large and if calculate one by one, it will take a lot of time. Hence, Rstudio really saves my time doing the analysis. The coding in r is not too difficult for me because it is quite straightforward compared to other programming languages. Therefore, I can use the function in Rstudio easily and let my analysis process smoothly.
By conducting hypothesis testing for 1 sample, I know that the mean of the total cases of Covid-19 in different countries is more than 10 million, it is a huge value and indicates that Covid-19 is easier to spread among the people at a very fast speed. By conducting correlation analysis, I know that the total cases and total deaths of Covid-19 have a positive linear relationship. The larger the number of total cases, the larger the number of total deaths. By conducting regression analysis, I know that the total recovered is dependent on the total cases. Almost all total recovered can be explained by total cases. By conducting the ANOVA test, I can conclude that the mean of active cases for different continents is the same as the p-value from the f test is larger than the 0.05 significance level.
In conclusion, I learned a lot of things while doing this project. For example, I learned how to use Rstudio to perform data analysis, learned to manage the report so that the report looks tidier, and also learned to communicate with team members so that we can come out with a better group project. Hence, this project gives me a good experience to learn more new things and skills and help me to improve my soft skills. I believe these skills will benefit me in the future.