Quality and Value index numbers
by There are certain variables that we cannot count or quantify in absolute terms. To measure such variables we use specialized averages known as index numbers. …
Category: Management Notes
Management Notes of Various Universities across india
Test for an ideal Index number
When constructing index numbers, it is important to evaluate their adequacy to ensure they provide meaningful and accurate representations of the changes in economic variables …
Components of time series Viz. Secular trend, Cyclical, Seasonal and irregular variations
When quantitative data are arranged in the order of their occurrence, the resulting statistical series is called a time series. The quantitative values are usually recorded …
Method of estimating seasonal indices
The measures of seasonal variations are called seasonal indices which are expressed either in terms of absolute values viz : S = Y – (T …
Method of estimating Secular Trend
The chief characteristics of a secular trend may be analysed as under. (i) It is either upward or downward. The secular trend of a series is …
Use of Time Series in Business Forecasting and its Limitations
Analysis of time series has a lot of utilities for the various fields of human interest viz: business, economics, sociology, politics, administration etc. It is, …
Calculating Growth Rate in Time Series
By a time series we mean a series of value of a variable, the values of which vary according to the passage of time. In …
Positive and Negative Correlation
Correlation can be defined as a statistical tool that defines the relationship between two variables. For, eg: correlation may be used to define the relationship …
Simple, Partial and Multiple Correlation
Simple, Partial and Multiple Correlation: Whether the correlation is simple, partial or multiple depends on the number of variables studied. The correlation is said to be simple …
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