data-analytics-challenge.md

Data Analytics Challenge

Dataset Information

For this challenge, we will use the Brazilian E-commerce Public Dataset by Olist from Kaggle. The dataset contains multiple tables, each with specific attributes related to e-commerce activities.

Dataset

Tables and Columns

1. Customers Table

   • customer_id: Unique identifier for each customer
   • customer_unique_id: Unique identifier for each unique customer
   • customer_zip_code_prefix: Zip code prefix of the customer
   • customer_city: City of the customer
   • customer_state: State of the customer

2. Geolocation Table

   • geolocation_zip_code_prefix: Zip code prefix of the location
   • geolocation_lat: Latitude coordinate of the location
   • geolocation_lng: Longitude coordinate of the location
   • geolocation_city: City of the location
   • geolocation_state: State of the location

3. Order Items Table

   • order_id: Unique identifier for each order
   • order_item_id: Identifier for each item in the order
   • product_id: Unique identifier for each product
   • seller_id: Unique identifier for each seller
   • shipping_limit_date: Last date for shipping the item
   • price: Price of the item
   • freight_value: Freight value of the item

4. Order Payments Table

   • order_id: Unique identifier for each order
   • payment_sequential: Sequential number of the payment
   • payment_type: Type of payment
   • payment_installments: Number of installments for payment
   • payment_value: Value of the payment

5. Order Reviews Table

   • review_id: Unique identifier for each review
   • order_id: Unique identifier for each order
   • review_score: Score given in the review
   • review_comment_title: Title of the review comment
   • review_comment_message: Message of the review comment
   • review_creation_date: Creation date of the review
   • review_answer_timestamp: Timestamp of the review answer

6. Orders Table

   • order_id: Unique identifier for each order
   • customer_id: Unique identifier for each customer
   • order_status: Status of the order
   • order_purchase_timestamp: Timestamp of the order purchase
   • order_approved_at: Timestamp when the order was approved
   • order_delivered_carrier_date: Date when the order was delivered to the carrier
   • order_delivered_customer_date: Date when the order was delivered to the customer
   • order_estimated_delivery_date: Estimated delivery date of the order

7. Products Table

   • product_id: Unique identifier for each product
   • product_category_name: Name of the product category
   • product_name_lenght: Length of the product name
   • product_description_lenght: Length of the product description
   • product_photos_qty: Number of photos of the product
   • product_weight_g: Weight of the product in grams
   • product_length_cm: Length of the product in centimeters
   • product_height_cm: Height of the product in centimeters
   • product_width_cm: Width of the product in centimeters

8. Sellers Table

   • seller_id: Unique identifier for each seller
   • seller_zip_code_prefix: Zip code prefix of the seller
   • seller_city: City of the seller
   • seller_state: State of the seller

9. Product Category Translation Table

   • product_category_name: Name of the product category
   • product_category_name_english: Name of the product category in English

Challenge Tasks

1. Data Exploration

   • Load the dataset and explore the structure and relationships between tables.
   • Provide a summary of each table and its attributes.

2. Customer Analysis

   • Analyze the distribution of customers by city and state.
   • Identify the top 10 cities with the highest number of customers.

3. Sales Analysis

   • Determine the total sales value for each product category.
   • Identify the top 10 best-selling products based on the number of items sold.

4. Order Analysis

   • Analyze the order status distribution.
   • Calculate the average delivery time for orders.

5. Review Analysis

   • Analyze the distribution of review scores.
   • Identify common themes in review comments using text analysis.

6. Payment Analysis

   • Analyze the distribution of payment types.
   • Calculate the average payment value for different payment types.

7. Geolocation Analysis

   • Visualize the geolocation data to identify regions with high order density.
   • Analyze the correlation between geolocation and delivery times.