Statistical Quality Control on Golden Guinea Lager Beer

ABSTRACT

In this work, the measured quality characteristics of Golden Guinea Lagerbeer were considered to construct control charts that could be used to study theproduction processes of Golden Guinea lager beer.Statistical quality control technique used in this work is JIocess control. Itwas care liii ly observed that both the process variability and the process mean of the four quality characteristics of Golden guinea lager beer are relatively stable. But for a more stable p10cess variability and process mean, the points that fall outside the warning and action limits were discarded and the revised control limits constructed. Since ii was concluded that the company operates a relatively stable quality standard (or the product (Golden Guinea lager beer). Then for a more improved quality, the company should consider operating a quality control chart for Golden Guinea Lager beer and some others.

TABLE OF CONTENT

DEDICATION I

ACKNOWLEDGEMENT' II

CERTIFICATION III

ABSTRACT IV

TABLE OF CONTENT

LIST OF TABLES/FIGURES VI

CHAPTER ONE

1 .0 INTRODUCTION I

1.1 BACKGROUND OF STUDY 1-6

I .2 STATEMENT OF PROBLEM 6-7

1 .3 RA1'IONALE OF STUDY 7

1 .4 TUE AIMS AN!) OBJECTIVES 7-8

1.5 SCOPE OF STUDY 8

1.6 LITERATURE REVIEW 8-10

1 .7 METI IODOLOGY 10-1 5

1.8CHAPTER OUTLINE/ORGANIZATION OF WORK 15

1.9 DEFINITION OF CONCEPTS I5-16

CHAPTER 17

2.0 JUSTIFICATIO OF ASSUMPTIONS 17

2.1.1 TEST FOR NORMALITY OF ALCOHOL PERCENTAGE

BY VOLUME 17-18

2. 1 .2 TEST FOR NORMALITY OF TEM1ERATURE 0 iS

2.1 .3 TEST l'OR NORMA! iTY OF I ILADSPACF. AIR 19

2. I .4 TEST FOR NORMAL!1'Y OF PRESSURE 19-20

2.2.1 TEST FOR RANEX)MNESS OF TEMPERATURE 24

2.2.2 TEST FOR RAN[)OMNESS OF TEMPERATURE 24-25

2.2.3 TEST FOR RANDOMNESS OF 1IEADSPACE AIR 25-26

2.2.4 TEST l'OR RANDOMNESS OF PRESSURE 26-27

CHAPTER THREE 28

3.0 INVESTIGATION OF PROCESS QUALITY 28

3.! CONSTRUCTION OF CONTROL Cl-TARTS FOR

ALCOHOL PERCI:NTAGF BY VOLUME 28-34

3.2 CONSTRUCTION 01 CONTROL CI-IARTS FOR

TEMPERATURE 35-41

3.3 CONSTRUCTION OF CONTROL CHARTS FOR

IIFAI)SPACL AIR 42-49

3.4 CONS1'RUCTION OF CONTROL. CT-tARTS FOR

1RESSU RE 50-57

CHAPTER FOUR 58

4.0 SUMMARY, RECOMMENDATIONS AND

CONCLUSiON 58

4.1 SUMMARY 58-60

4.2 RECOMMENDATIONS 60-6 1

4.3 CONCLUSION 61

REFERENCE 62-63