Regression analysis, Applied Statistics

Assignment Help:

Meaning and Definitions of Regression

The dictionary meaning of regression is just opposite the meaning of progression. Progression means to move forward while regression means to move backward going back. Or the return to the mean value. The erm Regression was first used by sir Francis Galton   in1877 in a study paper titled Regression toward Mediocrity in Hereditary Statue. In this paper he analysed the relationship between tjhe height of fathers and their sons. The sir galton   of correlation between theheight of fathers and sons was0.8.He noted in the above study that if the average height of a certain set of fathers is x cm. Above the general average. Thus there was a tendency or move average .Thus there was a tendency or move toward mediocrity. Galton described the average relationship between the height of father and their sons as the line of regression.

Regression is used to establish relationship between two sets of related variables. The important definitions given by prominent  writers are as given below .

Regression is the measure   of average relationship between two or more variables in terms of the original   units of the data.

It  is often more  important to f find out what  the relationship  actually is, in order to estimate or predict one variable  and the statistical  technique  appropriate  to such a case is called  regression analysis.            M. M .Blair

One of the frequently used technique   in economics and business research   to find a relation between two or more variable that are  related causally, is regression are related.                                                            Taro Yamana

From the above definitions it may be concluded that regression analysis is a mathematical measure of the average relationship between a series of two or more variable in terms of the original units of data under study. It is used to predict the value of one variable on the basis of other variable. 


Related Discussions:- Regression analysis

Determine the probability, For a distribution of scores with = 82 and stand...

For a distribution of scores with = 82 and standard deviation = 2.5, find the following: (Don't forget to sketch the normal curve to help you visualize what you are trying to fi

business forecasting, Explain the characteristics of business forecasting

Explain the characteristics of business forecasting.

Evaluate the standard deviation, You have an assembly line which produces 1...

You have an assembly line which produces 1L bottles of seltzer with a standard deviation of 0.05L. • Assuming the distribution of volume is normal, what is the chance any single

Inference on reggression analysis, find the expected value of the mean squa...

find the expected value of the mean square error and of the mean square reggression

Index number , how to write result in the end of price index number problem...

how to write result in the end of price index number problem

Standard deviation , Standard Deviation  The concept of standard deviat...

Standard Deviation  The concept of standard deviation was first introduced by Karl Pearson in 1893. The standard deviation is the most important and the popular measure of disp

Multiple regression analysis, Complete the multiple regression model using ...

Complete the multiple regression model using Y and your combined X variables.  State the equation.  Next, make sure that you evaluate overall model performance with the Anova table

Coefficient of variation, Coefficient of Variation The standard dev...

Coefficient of Variation The standard deviation discussed above is an absolute measure of dispersion. The corresponding relative measure is known as the coefficient of vari

Principles of data analysis, For the data analysis project, you will addres...

For the data analysis project, you will address some questions that interest you with the statistical methodology we are learning in class.   You choose the questions; you decide h

Regression analysis, Of the 6,325 kindergarten students who participated in...

Of the 6,325 kindergarten students who participated in the study, almost half or 3,052 were eligible for a free lunch program. The categorical variable sesk (1 == free lunch, 2 = n

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd