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CORRELATION AND REGRESSION ANALYSIS ON INCOME AND EXPENDITURE OF MTN LTD FROM 2007 – 2014 (A Case Study of Nigerian Telecommunication LimitedState MTN)

TABLE OF CONTENT

Title Page................................................................................................................ i

Certification.. iii

Dedication.. iv

Acknowledgementv

Table of Contentvi

Abstractviii

Chapter One. 1

1.0       Introduction.. 1

1.1       The Background of the Study. 2

1.2       Problems Encountered. 2

1.3       Aim and Objectives of the Project3

1.4       Historical Background of the Case Study, NTN.. 4

1.5       Definition of some terms. 6

1.6       Scope and Coverage of the study. 8

Chapter Two.. 9

2.0       Literature Review.. 9

2.1       Methods of Data Analysis. 9

2.1.1   Scatter Diagram.. 9

2.2       Regression Analysis. 11

2.3       Free Hand Method. 11

2.4.      Least Square. 12

2.5       Correlation Analysis. 15

2.5       Method of Calculating Correlation Co-efficient16

2.5.1   The Karl Pearson’s Product – Moment Correlation Co-efficient (v).............. ........... ........... 16

2.5.2   Correlation Coefficient Using the Concept of Variation: explained and Unexplained Variation   19

2.5.3   Rank Correlation Co-efficient20

2.6       Hypothesis Testing. 22

2.7       Analysis of Variance (ANOVA) for hypothesis testing on Simple Linear Regression.23

Chapter Three. 26

3.0       Collection of Data. 26

3.1       Definition of Data. 26

3.2       Method of Data Collection.. 28

Chapter Four. 34

4.0       Analysis of the Data. 34

4.1       The Trend of Yearly Expenditure. 35

4.2       Tend of yearly income. 39

4.4       Determination of Coefficient using the Karl Pearson’s Product Moment (r)44

4.4.1   Determination of Correlation Coefficient using the cOncept of Variation   48

4.4.2   Standard Error Estimate. 49

4.4.4   Hypothesis Testing for Regression Coefficient Test for b (slope)52

4.4.5   Test of Significance for Null Hypothesis. 56

4.5.2   Confidence Interval on or ao. 60

Chapter Five. 62

5.0       Findings, Conclusion and Recommendation.. 62

5.1       Findings and Conclusion.. 62

5.2       Recommendation.. 65

References. 68

ABSTRACT

This project work covers the correction and regression analysis on the income and expenditure of Nigerian Telecommunications Limited as our case study for a period of ten years (1991-2000). The whole project work contains five chapters. The introduction of topic of the study, brief historical background of the case study, aims and objectives of the project work were treated in chapter one as well as the definitions of some terms. Chapter two deals with the literature review of correlation and regression analysis. The method used in data collection, merits, and demerits of various method used, and the presentation of the original data were discussed in chapter three, while chapter four is for data analysis, trend of income and that of expenditure, regression and correction co-efficient using the concept of variation, rank correction co-efficient (Spearman’s) setting confidence interval for the regression co-efficient and hypothesis  test on it, test hypothesis on correction co-efficient and use of the Analysis of Variance (ANOVA). Lastly, chapter five contains the findings from the analysis, conclusion and recommendations based on the analysis made in chapter five. The Reference is also stated in this chapter.


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