The Application Of Statistical Quality Control Techniques In Industry (Case Study Of Nigerian Bottling Company Plc, Aba)

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Project and Seminar Material for Mathematics and Statistics

Project and Seminar Material for Mathematics and Statistics


This project is proudly dedicated to my father in heaven “Almighty God” and to my lovingly parents and everybody who had contributed in one way or the other in this project work.


My humble gratitude goes to the Almighty God who had made it possible through these sources of inspiration and provision to put my efforts on paper and beings about the completion of this work.

I am particularly grateful to my supervisor Mr. P.U. Uzoma, Mr. C.C. Chimme (HOD) Maths and Statistics department.

My humble thanks goes to my parents Chief Mr. and Mrs. E.A. Bassey for granting me the opportunity of going to school and always playing a caring and loving parental role both physically and spiritually to make sure am okey,my sibling;Peace,Gift,Victoria,Deborah,Abigail,Gold,Temple and my only brother Asuqwo,for their encouragement.
I will not fail to thank my best friend in campus NASS President 2011/2012 Mr. Paschal who was always ready to put me through both in my project and personal problem in the field of statistics may he remain my mentor. Also to my friends Ada,Gold,Nk,Nj,Happiness,Chibuogo.


The level of technical effort devoted to quality control in the industries in Nigeria is quite low, very few firms carryout two controls measures in production that is, measurement by which risk international specification of ensuring that the product conforms to the specification.

It was done by taking a sample rejecting the null hypothesis. Today, this is beginning to change in some industry like bottling companies, this research project looked into the taste of a particular bottling company product, to find out if there is significant different in taste and sugar mixing irrespective of different location.

The related work done on this project provided some vivid point that can determine impressive bottling company performance, good quality control lab and protection of workers to avoid hazard in the industry. Among the major findings were the uses of statistical quality control in the industry. The goods of statistical control in industry, whether there is significant difference in taste and brix (sugar) mixing. The data was obtained from the quality control department and Nigerian bottling company production manual value one and the data was analyzed using quality charts and analysis of variance.

Table Of Content

Title page
Approval page- ii
Dedication iii
Acknowledgement- iv
Abstract v
Table of content vii

Chapter One

1.0 Introduction
1.1 Historical background
1.2 Statement of problem
1.3 The significance of the study
1.4 Aims and objectives
1.5 The scope of study
1.6 Limitation of the study
1.7 Research questions
1.8 Statement of hypothesis
1.9 Definition of terms

Chapter Two

2.0 Introduction
2.1 Review of related Literature
2.2 The uses of Statistics in industries

Chapter Three

3.0 Research Design and Methodology
3.1 Introduction
3.2 Data collection
3.3 Sampling technique
3.4 Types of data
3.5 Method of data collection
3.6 Method of analysis
3.6.1 Purpose of quality control chart
3.6.2 Types of control chart
3.1.1 Notations

Chapter Four

4.0 Data presentation, Analysis and Interpretation
4.1 Introduction
4.2 Data presentation
4.3 Computation of means (x)
4.4 Interpretation
4.5 Computation of mean (x) and Range ® of sodium citrate
4.6 Analysis of Variance
4.7 Test Statistic:F-ratio
4.8 Application:NBC Company PLC Aba

Chapter Five

5.0 Findings summary conclusion and Recommendation
5.1 Findings
5.2 Summary
5.3 Conclusion
5.4 Recommendation

Chapter One

1.0 Introduction

1.1 Historical Background Of Nigerian Bottling Company

The Nigerian bottling company plc (NBC) was incorporated in November 1951, as a subsidiary of the A.G.leventis group with the franchise to bottle and sell coca-cola products in Nigeria. From a humble beginning as a family business, the company has grown to become a predominant bottler of non-alcoholic beverage in Nigeria, responsible for the manufacture and sale of over 33 different coca-cola brands. Other popular brands of beverage produced by the company are Eva water, Five-Alive fruit juice and the newly introduced Burn energy drink.

The company presently has 13 bottling facilities and over 80 distribution warehouse located across the country. Since production started, NBC PLC has remained the largest bottler of nonalcoholic beverages in the country in terms of sales volume, with about 1.8 billion bottles sold per year, making it the second largest market in African today, the company is part of coca-cola company’s largest anchor bottlers worldwide. CCHBC operates in 28 countries, serving 540 million consumers and selling over 1.3 billions unit cases of beverage annually.

The company recently embarked on a restricting exercise to expand further its market share and growth profit. It invested in a new state of the art can filling and packing linear the Apapa plant. The plant has since begun to produce the first soft drink can that is wholly packaged in Nigeria. This is in addition to new bottling plant in Abuja. Investment in the upgrade of other manufacturing infrastructure, distribution and delivery facilities.Te company is governed by a stable nine member board of director comprising of very prominent individual who have excelled in different fields of endeavor within and outside Nigeria.

The board is headed by Ambassador olusegun Apata while the management team is led by Mr. Ronald Ebeit,an expatriate professional. the authorizes share capital of the company is N750 million made up of 1.5billion ordinary shares of 50k per share out of which 1.308 ordinary shares of 50k each or N654,367 million is issued and fully paid. The share capital of the company grew from N487 million in 2003 to the present amount in the FYE 2006 through several scrip issues. majority of the shares is held by foreign investors comprising of Molino sot Drinks S.A(55.81%)and CCHBC service ltd.62%).thus only 33.59% is available to the public. shareholders fund has increase from N19.31 BILLION IN 2003 to N22.81 billion in 2007.

  1. The general manager
  2. Departmental head
  3. Production manager
  1. Account department
  2. Inventory
  3. Marketing department
  4. Sales manager
  5. Sales officers
  6. Sales supervisors
  7. Sales men and sales assistance
Quality Control Department
  1. Water treatment sector
  2. Carbondioxide
  3. Syrup room
  4. Boiler room
  5. Laboratory
  6. Line (production hall)

The seven up bottling company have quality control programmes focused on four view areas of plant operation.

Production line testing:To ensure that the individual limits such as the bottle washer, mix processor, carbonator, fullers, cooling system are working efficiently and that the syrups, carbondioxide and water are being proportional erectly.

Water testing:To ensure that the water treatment equipment is operating correctly.
Testing of ingredience:Modification of chemicals and packaging materials are received to confirm quality.

The Uses Of Statistics In Industry:
Decision Making:

The science of statistics deals with making decision based on observed data in the face of uncertainties the scientific and industrial work.

In Management:

Scientific management is the basically management on the basis of precise numerical information without using statistical aid such interpretations to fail to use one of the major tool of efficient management. The complementariness of modern industrial production and management makes it compulsory that management be furnish with statistical data as raw materials labour sales etc.

1.2 Statement Of Problem:

High or low carbon dioxide, gas pressure, inaccurate instrument for measuring the quality of drinks, lack of carbon dioxide gas, improper adjustment of control leakage and line freezing caused by improper heating.

High Water Temperature:

This include refrigerator equipment not working properly or other coolant failure to draw cooler water storage tank, carbonator and filler bowl after machine has been in operation for a long period of time.

Dirty Bottling:

The effect of mixing values and water not properly treated air in syrup or in carbonated water.

1.3 The Significance Of The Study:

  1. The researcher report will go a long in giving the production department of 7up bottling company necessary (line production hall) guideline maintaining standard wall also reach out to review the cause of inequality process in the industries.
  2. It will help the quality control manager to adopt a suitable solution in a production process.
  3. It protects consumers from accepting a product containing high number of detectives.
  4. It will encourage the producer to keep the process in control and full information about the quality of the goods being produced.

1.4 Aims And Objectives

The purpose of the study is to determine and identify if there has been significant difference in taste of manufactured product and also to protect producer from having their products containing low number of detective.

1.5 The Scope Of Study And Limitations

This work hopes to cover the following areas:

  1. To ensure that finished product suits or meet required standard.
  2. To check if the processing system and production line.
  3. To present the consumers with a product that is consistently within standards.
  4. To cover a coordinated programme combining the efforts of the various group quality development such as improvement, quality maintenance etc.
  5. To cover an area of quality control programme focus on areas of plant operations.

1.6 Limitation Of The Study

Time Constraint:

There was limited time together information for this work, due to other academic responsibilities.

Lack Of Finance:

There was not enough money to finance this work. I find it very difficult to get through to finance my reports, since it involves gathering information from different sources.

Unavailability Of Materials:

This was the major limitation I encountered in the course of this work; I find it very difficult and fasting to get book materials and accurate, no-book material lists the subject matter under consideration.

1.7 Research Questions

The research questions gathered in this work includes:

  1. What are the reasons of studying a particular case known as quality control of 7up Company in Aba?
  2. What are the major problems in quality control as to 7up bottling company as a case study?
  3. Who is to be blame for any problem found in quality control processor?
  4. What would be the long-standing relationship between quality and operation and the company?

1.8 Statement Of The Hypothesis

  • Ho: There is no significant difference in taste and mixing irrespective of different locations.
  • HI: There is significant difference in taste and mixing irrespective of different locations.

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