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206 条评论

## 课程概述

Regression Analysis is perhaps the single most important Business Statistics tool used in the industry. Regression is the engine behind a multitude of data analytics applications used for many forms of forecasting and prediction. This is the fourth course in the specialization, "Business Statistics and Analysis". The course introduces you to the very important tool known as Linear Regression. You will learn to apply various procedures such as dummy variable regressions, transforming variables, and interaction effects. All these are introduced and explained using easy to understand examples in Microsoft Excel. The focus of the course is on understanding and application, rather than detailed mathematical derivations. Note: This course uses the ‘Data Analysis’ tool box which is standard with the Windows version of Microsoft Excel. It is also standard with the 2016 or later Mac version of Excel. However, it is not standard with earlier versions of Excel for Mac. WEEK 1 Module 1: Regression Analysis: An Introduction In this module you will get introduced to the Linear Regression Model. We will build a regression model and estimate it using Excel. We will use the estimated model to infer relationships between various variables and use the model to make predictions. The module also introduces the notion of errors, residuals and R-square in a regression model. Topics covered include: • Introducing the Linear Regression • Building a Regression Model and estimating it using Excel • Making inferences using the estimated model • Using the Regression model to make predictions • Errors, Residuals and R-square WEEK 2 Module 2: Regression Analysis: Hypothesis Testing and Goodness of Fit This module presents different hypothesis tests you could do using the Regression output. These tests are an important part of inference and the module introduces them using Excel based examples. The p-values are introduced along with goodness of fit measures R-square and the adjusted R-square. Towards the end of module we introduce the ‘Dummy variable regression’ which is used to incorporate categorical variables in a regression. Topics covered include: • Hypothesis testing in a Linear Regression • ‘Goodness of Fit’ measures (R-square, adjusted R-square) • Dummy variable Regression (using Categorical variables in a Regression) WEEK 3 Module 3: Regression Analysis: Dummy Variables, Multicollinearity This module continues with the application of Dummy variable Regression. You get to understand the interpretation of Regression output in the presence of categorical variables. Examples are worked out to re-inforce various concepts introduced. The module also explains what is Multicollinearity and how to deal with it. Topics covered include: • Dummy variable Regression (using Categorical variables in a Regression) • Interpretation of coefficients and p-values in the presence of Dummy variables • Multicollinearity in Regression Models WEEK 4 Module 4: Regression Analysis: Various Extensions The module extends your understanding of the Linear Regression, introducing techniques such as mean-centering of variables and building confidence bounds for predictions using the Regression model. A powerful regression extension known as ‘Interaction variables’ is introduced and explained using examples. We also study the transformation of variables in a regression and in that context introduce the log-log and the semi-log regression models. Topics covered include: • Mean centering of variables in a Regression model • Building confidence bounds for predictions using a Regression model • Interaction effects in a Regression • Transformation of variables • The log-log and semi-log regression models...

## 热门审阅

BB

Apr 21, 2020

Wonderful Course having in depth knowledge about all the topics of regression analysis. Instructor is very much clear about the topic and having good teaching skill. Method of teaching also very good.

WB

Dec 20, 2017

I have found Course 3 and 4 of this specialization to be challenging, but rewarding. It has helped me build confidence that I can do just about anything with data provided to increase positive impact.

## 126 - Linear Regression for Business Statistics 的 150 个评论（共 202 个）

Aug 5, 2019

Awesome course...Very interesting to learn.

Nov 21, 2019

Had a better understanding on regression.

Jul 5, 2020

ONE OF THE BEST COURSE I HAVE EVER DONE

May 31, 2020

This is a very good and useful course.

May 6, 2020

great content. really enjoyed learning

Oct 10, 2018

Very nicely structured and implemented

Jan 29, 2019

VERY GOOD COURSE. Professor is great

Apr 12, 2020

Excellent course! best of the best!

Jul 26, 2020

Awesome Faculty and Course Content

Jun 6, 2020

Best course to learn regression

Aug 12, 2019

Excellent course for beginners

Feb 21, 2018

Very useful course, thank you!

Oct 12, 2020

Great educational experience!

May 7, 2020

It was a very useful course.

Sep 17, 2017

Easy to understand and apply

Sep 10, 2017

Well structured course work

Sep 25, 2020

Great learning experience.

Mar 26, 2018

Very well explained and ea

Sep 15, 2020

Excellent course content.

May 20, 2020

VERY INTERESTING COURSE

Apr 17, 2018

Excellently explained!

Feb 21, 2020

Enjoyed this course.

Oct 24, 2018

Great explanations!!

Apr 13, 2020

Very useful Course!

Oct 29, 2017

Amazing Professor !