返回到 Linear Regression for Business Statistics

4.8

587 个评分

•

93 个审阅

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...

Dec 21, 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.

Jul 12, 2019

I learned a lot.I gain confidence in analyzing data in Excel.I am happy that I have successfully completed it with simple understanding given on each topic.It was great help.Thank you very much

筛选依据：

创建者 John D I

•Oct 01, 2018

Great course, very thorough with very good examples and explanations.

创建者 Scott L

•Sep 16, 2018

Though I was briefly introduced to linear regression in my graduate studies, I found the structure and presentation of this material to be more helpful to learning and understanding the material AND it's use cases.

创建者 Vitalii S

•Apr 26, 2019

practical

创建者 Victor W

•Apr 21, 2019

Very good course for people of all backgrounds and experience levels in the topic! If you are new to regression or familiar with it I highly recommend it.

创建者 shwetamehna

•Jun 19, 2019

I like this course. You need to study this course if you want basic understanding of Statistics because Statistics is base need of analytical field. And instructor explained each and every team in a very simple way. Thanks a lot Professor.

创建者 SUSHMITA U D

•Jul 12, 2019

I learned a lot.I gain confidence in analyzing data in Excel.I am happy that I have successfully completed it with simple understanding given on each topic.It was great help.Thank you very much

创建者 jittu s

•May 16, 2019

great course

创建者 EDILSON S S O J

•May 31, 2019

Nice course!

创建者 Camilo S

•Jul 14, 2019

Extraordinary course! Great presentations, great contents, usefull exercises and applications

创建者 Lalit G

•Aug 05, 2019

Awesome course...Very interesting to learn.

创建者 Ayush B

•Aug 12, 2019

Excellent course for beginners

创建者 Andrew A

•Sep 14, 2019

Mr. Bodle presents the material in a very organized and understandable fashion. Well worth the time taking this class.

创建者 shikha

•Aug 28, 2019

Very informative, well designed course. The flow of the course was set in such a way that you easily cruise through it. Thoroughly enjoyed learning. Highly recommended.

创建者 Tori G

•Oct 06, 2019

I thoroughly enjoyed this course. The instructors were very clear and concise thereby making the course easy to follow and understand.

创建者 Shirish G

•Sep 12, 2019

Thoroughly explained Linear regression in very simple format.

创建者 Michael H

•Nov 17, 2019

This was the most useful and insightful class in the specialization so far, at least for me and what I was looking to get out of these courses

创建者 Solicia X

•Nov 21, 2019

Had a better understanding on regression.

创建者 flavio e d s

•Dec 03, 2019

Curso muito bom, aprendi muitos conceitos, o curso é bastante voltado para interpretação dos resultados, fiz algumas analises no trabalho aplicando os conceitos que aprendi, recomendo bastante.

创建者 Suriya N

•Apr 01, 2018

Really liked the course!!!

创建者 Jacob C

•Apr 08, 2017

The exercises included help a lot in practically understanding the matter. I did not find that in other courses and it was a miss.

创建者 Prince N X

•Jun 07, 2017

The course was very informative and I have learnt a lot.

创建者 Yaron K

•Apr 13, 2017

An in depth explanation of how to use Excel for Linear Regression and what the Output values in Excel's Regression mean. Note that the transcripts/subtitles contain many errors, which can be problematical for the hard of hearing or non English speakers, which is why I gave the course only 4 points.

创建者 Colin P

•May 03, 2018

I found this course the most challenging of the courses in this certificate program, but also the most interesting b/c it the info. can be applied to real world scenarios. Though I do feel I know "enough to be dangerous". There is a lot of depth to linear regression techniques, which this course doesn't cover. But it did open my eyes to the power and possibilities of using linear regression techniques on real world problems.

创建者 Deleted A

•Dec 28, 2017

I thought it was very well done but I felt like the material was kind of rushed and some subjects were brushed over. I would like a little more in depth coverage of this subject.

创建者 Marcos P

•Jun 06, 2018

Phenomenal course. A little more in-depth explanations and more examples for the concepts introduced in the last two weeks would have been nice though. In week 3 and 4, I found it challenging to go so quickly over so many new concepts all of a sudden. But still, I would really recommend taking this course, I found it useful.