3.1 Research questions3.2 Analysis design3.3 Descriptive data analysis3.3.1 Popularity of product categories3.3.2 Performance of products in their categories and regions3.3.3 Review scores distribution3.3.4 Order status3.4 Inferential analysis3.4.1 Before you begin3.4.2 Relationship between product attributes and shipping costs3.4.3 Relationship between product, transaction, shipping attributes, and the review score3.4.4 Differences in sales performance and customer satisfaction between sellersSummary