Analyzing Customer Ratings of Call Quality Across Regions

This project will exposes the learner to various Data Visualization Techniques to analyze customer’s opinion.

Analyzing Customer Rating on Voice Call Quality Across Different Regions
  • 1 bar graph
    Difficulty: Beginner

    No prior knowledge or experience with data required.

  • Asset 1
    Duration: Approximately 5 hours

Case Overview

  • Data Visualization is an essential tool for representing information graphically in a data-driven world.
  • Telecom industry usually faces issues relating to accessibility and performance of voice call quality experienced by its customers. This is concerning as dissatisfaction by customers results to customer attrition and telecom operators lose their share in the market.
  • For this, analyzing customer rating on voice call quality is important to understand factors related to customer experience and form better strategies to alleviate any issues.
  • Learn to apply multiple statistical techniques to analyze voice call quality across different regions.

What’s included


Lifetime Access

Access this project for life once completed


Flexible Scheduling

Start learning online immediately, at your own pace


Desktop Only

We recommend completing this project on a desktop

Skills You Will Learn

Data Management

Data Visualization

Business Analysis

Data Science Concepts

Statistical Analysis

Data Distribution Charts

Associated Learning Tracks

Case Context

  • The Indian government has facilitated simple market access for telecom equipment
  • They have established a fair and robust regulatory environment to telecom services available to all the people
  • Despite this, a large number of customers are not satisfied with the quality of voice calls being delivered by telecom companies

  • For analyzing the customer rating on voice call quality, the feedback given by the customers from different states based on the quality of voice is analyzed using various data exploration techniques
  • Statistical tests such as Chi-Square Independence Test is performed to determine association between variables.
  • Nationwide customer feedbacks are visualized with the help of India Map

  • The results can be utilized by different telecom operators to identify areas and regions where they are not able to satisfy their customers.
  • This helps them to build a road map to address those gaps and sustain competitiveness.
  • Different telecom operators can analyze customer feedback in the similar manner to evaluate and improve their performance

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