SAMPLING

Introduction

Most of the researchers are based on samples rather than population.  The reason is that it is impracticable to observe the total population or to apply a questionnaire or any other tool on the total population under controlled condition.  Shortage of time or money is another problem. 

ANNOVA

TWO WAY ANALYSIS OF VARIANCE

Ò  The one way analysis of variance technique is used to analyse the effect of one independent variable or one type of treatment. It is used to study the main effect of one variable only.

MULTIVARIATE ANALYSIS

Introduction :

            Multivariate analysis is statistical methods that allow the simultaneous investigation of more than two variables. Two basic groups of multivariate techniques are classified. dependable methods and interdependable methods.

NULL HYPOTHESIS AND ITS SIGNIFICANCE

Introduction

                   When a researcher observes known facts and takes up a problem for analysis, he first has to start somewhere and this point of start is the hypothesis. 

HYPOTHESIS

                                                                                            

            When a research observes known facts and takes up a problem for analysis, he first has to start somewhere and this point of start is the hypothesis. In other words, one has to process to formulate tentative solutions as soon as the problem to be tackled is finalised.

Role of SPSS

Measures of Central Tendency and Measures of Dispersion

Example 1

            The following table gives the no of working hours and the number of persons to complete a particular task. Calculate mean , median, mode, standard deviation, skewness and kurtosis.

Construction and Confirmation of Hypotheses

          

     Construction and Confirmation of Hypotheses

                                                                                                       

Introduction:

The formulation of hypotheses as to the possible answer to the research question is an important step in the process of formulation of