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Analysis of Sales Trends of Tristar Air Coolers

CASELET, STATISTICS FOR MANAGEMENT
ET Cases,
AUTHOR(S) : R. Muthukumar and Dr. Nagendra V. Chowdary

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Analysis of Sales Trends of Tristar Air Coolers

 

Tristar, Mumbai-based air cooler manufacturer and supplier, was one of the best known companies in Maharashtra, India. Tristar offered a range of air coolers in various sizes, types and models to fit virtually every application requirement. Within few years of its inception in 1998, the company became No. 1 in Mumbai in 2002. In the 15 years of its operations the company had no litigations with any of its customers. According to a customer survey by the company, the customers rated the after sales service of Tristar to be very high compared to others....................

Teaching Note Preview

Analysis of Sales Trends of Tristar Air Coolers

 

Prerequisite Conceptual Understanding

Prerequisite Conceptual Understanding (PCU) material is the background material that would aid immensely in mapping the decision areas of this caselet and bring a synthesis amongst the relevant concepts. The participants/students should be encouraged to read this material to benefit from the broader perspectives outlined in the caselet.

  • • Richard I. Levin and David S. Rubin, “Chapter 15: Time Series”, Statistics for Management, 7th Edition, Pearson Education, 2008

 

Synopsis

The caselet enables to comprehend the basics of time series analysis and the concept of predicting the future pattern of sales by collecting the past data using time series analysis. Tristar is a popular domestic air cooler manufacturer and supplier in Mumbai, India, which came to be counted among the best by 2002, within 3 years of its inception. However, the Founder-CEO observed that the company’s sales had not been uniform. He wanted to identify the reasons and improve the sales. Having collected the past data on quarterly basis, the Founder-CEO wanted to analyze the variations, trends and patterns, based on which he wanted to forecast sales for the future too. This caselet attempts to discuss seasonal and cyclical patterns of the sales.

Expected Learning Outcomes

  • • The basics of time series analysis
  • • The components – secular trends, cyclical variations and seasonal trends – of time series analysis

 

Assignment Questions

  • I. Analyze the variations, seasonal and cyclical patterns in the sales of Tristar.
  • II. What would be your suggestion to Tristar’s CEO?

 

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Abstract


The caselet enables to comprehend the basics of time series analysis and the concept of predicting the future pattern of sales by collecting the past data using time series analysis. Tristar is a popular domestic air cooler manufacturer and supplier in Mumbai, India, which came to be counted among the best by 2002, within 3 years of its inception. However, the Founder-CEO observed that the company's sales had not been uniform. He wanted to identify the reasons and improve the sales. Having collected the past data on quarterly basis, the Founder-CEO wanted to analyze the variations, trends and patterns, based on which he wanted to forecast sales for the future too. This caselet attempts to discuss seasonal and cyclical patterns of the sales.



Pedagogical objectives

  • To understand the basics of time series analysis
  • To understand and discuss the components - secular trends, cyclical variations and seasonal trends - of time series analysis



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