Inferential statistics is to construct inferences and descriptions of a population. For this project, the type of data used is secondary data which means that the data is gained by other organizations. There are several tests that we carried out in this project which are Hypothesis testing, Correlation, Regression and Chi-square test on independence.
We had some difficulties in carrying out this project. We didn't have a clear understanding of the tests that we have to carry out in our project. Then, we have to produce the results of the tests in RStudio using R programming language. So, my team had few discussion sessions to get a clear understanding of this project and to overcome our difficulties so that we can complete our project neatly.
As for the result of our project, we found that the average of miles per gallon of a car is almost 20 MPG and we believe that this value will increase as the technology develops. When the model year of a car is higher, its average MPG is higher too. It shows that the fuel efficiency of a higher Model Year car is higher.