Statistics Coursework: Data Analysis and Regression Models

This statistics assignment presents a comprehensive analysis of various statistical concepts. Question 1 focuses on descriptive statistics, including mean, median, kurtosis, skewness, confidence intervals, and correlation analysis between profit and other variables. Question 2 delves into multiple regression analysis, examining the relationships between variables such as mileage per gallon, price, and other car features. Question 3 explores time series analysis, encompassing moving averages, seasonal adjustments, and exponential smoothing techniques to analyze sales data over time. The assignment includes detailed calculations, tables, and diagrams to support the analysis, demonstrating the application of statistical methods to real-world data and providing insights into data interpretation and model building. The appendix includes all the excel calculations and the regression models.