返回到 Business Applications of Hypothesis Testing and Confidence Interval Estimation

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Confidence intervals and Hypothesis tests are very important tools in the Business Statistics toolbox. A mastery over these topics will help enhance your business decision making and allow you to understand and measure the extent of ‘risk’ or ‘uncertainty’ in various business processes.
This is the third course in the specialization "Business Statistics and Analysis" and the course advances your knowledge about Business Statistics by introducing you to Confidence Intervals and Hypothesis Testing. We first conceptually understand these tools and their business application. We then introduce various calculations to constructing confidence intervals and to conduct different kinds of Hypothesis Tests. These are done by easy to understand applications.
To successfully complete course assignments, students must have access to a Windows version of Microsoft Excel 2010 or later. Please note that earlier versions of Microsoft Excel (2007 and earlier) will not be compatible to some Excel functions covered in this course.
WEEK 1
Module 1: Confidence Interval - Introduction
In this module you will get to conceptually understand what a confidence interval is and how is its constructed. We will introduce the various building blocks for the confidence interval such as the t-distribution, the t-statistic, the z-statistic and their various excel formulas. We will then use these building blocks to construct confidence intervals.
Topics covered include:
• Introducing the t-distribution, the T.DIST and T.INV excel functions
• Conceptual understanding of a Confidence Interval
• The z-statistic and the t-statistic
• Constructing a Confidence Interval using z-statistic and t-statistic
WEEK 2
Module 2: Confidence Interval - Applications
This module presents various business applications of the confidence interval including an application where we use the confidence interval to calculate an appropriate sample size. We also introduce with an application, the confidence interval for a population proportion. Towards the close of module we start introducing the concept of Hypothesis Testing.
Topics covered include:
• Applications of Confidence Interval
• Confidence Interval for a Population Proportion
• Sample Size Calculation
• Hypothesis Testing, An Introduction
WEEK 3
Module 3: Hypothesis Testing
This module introduces Hypothesis Testing. You get to understand the logic behind hypothesis tests. The four steps for conducting a hypothesis test are introduced and you get to apply them for hypothesis tests for a population mean as well as population proportion. You will understand the difference between single tail hypothesis tests and two tail hypothesis tests and also the Type I and Type II errors associated with hypothesis tests and ways to reduce such errors.
Topics covered include:
• The Logic of Hypothesis Testing
• The Four Steps for conducting a Hypothesis Test
• Single Tail and Two Tail Hypothesis Tests
• Guidelines, Formulas and an Application of Hypothesis Test
• Hypothesis Test for a Population Proportion
• Type I and Type II Errors in a Hypothesis
WEEK 4
Module 4: Hypothesis Test - Differences in Mean
In this module, you'll apply Hypothesis Tests to test the difference between two different data, such hypothesis tests are called difference in means tests. We will introduce the three kinds of difference in means test and apply them to various business applications. We will also introduce the Excel dialog box to conduct such hypothesis tests.
Topics covered include:
• Introducing the Difference-In-Means Hypothesis Test
• Applications of the Difference-In-Means Hypothesis Test
• The Equal & Unequal Variance Assumption and the Paired t-test for difference in means.
• Some more applications...

Oct 17, 2017

Professor explains well and makes it easy to not only understand, but to remember what you learned in previous lessons even if you are going back after a long period of time between lessons.

Nov 26, 2018

I am from Applied Statistics background, and I used to do these tests by hands. I really have enjoyed doing them on Excel as well. Thanks for this amazing course! :)

筛选依据：

创建者 Sabarish V

•Jan 01, 2019

The content was concise and easy to understand. However, in the hypothesis testing modules, the presenter conflates "being unable to reject a hypothesis" to "accept a hypothesis". This, I think, is a dangerous habit to learn, and undermines what is otherwise a well-prepared course.

创建者 Amit M

•Dec 12, 2018

The course is very helpful to learn and understand some really important and useful concepts of statistics. The course not only teach the concept but also we can practice it side by side ourselves also from the course material given by Coursera. Instructor is very good, this is my third course under a specialization by the same instructor and I must say one must take this course if they are going to use these concepts in future. Good Luck.

创建者 Aline C

•Nov 24, 2018

Well designed and usefull. A good investment

创建者 Shady N S T

•Nov 26, 2018

I am from Applied Statistics background, and I used to do these tests by hands. I really have enjoyed doing them on Excel as well. Thanks for this amazing course! :)

创建者 Gregory R G J

•Nov 28, 2018

Thumbs Up!

创建者 Emil R

•Dec 27, 2018

Great course. Excellent Instructor. Absolutely worth the time and effort.

创建者 原野

•Dec 28, 2018

it is really helpful class!!!

创建者 DEEPTI C

•Jan 12, 2019

Course is very well organized and the concepts are explained in a very simple and effective way.

The weekly exercises provide a good hands on practice.

创建者 Atis R

•Feb 22, 2019

Good

创建者 Ernesto B P

•Mar 20, 2019

Very nice and easy to follow course. I have had a great experience learning the Hypothesis Testing secrets in Excel.

创建者 sutan a m

•Mar 23, 2019

easy to follow! the rule of thumbs helps a lot, and a lot of examples.

创建者 jittu s

•Mar 27, 2019

great course

创建者 Olga

•Jan 31, 2019

Great

创建者 Rengarajan S

•Apr 08, 2019

Very useful.. learnt a whole lot of new statistical tools and techniques. Highly recommended..

创建者 Ernie R

•Mar 04, 2019

Great instructor! Easy to follow along.

创建者 ARVIND K S

•Mar 15, 2019

Probably the best course on confidence intervals and hypothesis testing. A must for all engineering and management students and managers.

创建者 Nazmus S S

•Jan 07, 2019

Professor is very good. I love this course.

创建者 Terry N U

•Sep 27, 2018

Statistics simplified.

Awesome!!!

创建者 Esther K

•Aug 15, 2018

Great course!

创建者 Victoria

•Oct 04, 2018

Concise practical approach to business hypothesis testing in excel.

创建者 Gregory L

•Nov 22, 2018

Loved the course; great materials, great pace, great practice

创建者 Karen S Z

•Jul 21, 2018

I am completing the specialization so this is my 3rd class with this instructor. I am enjoying the classes and feel that each lesson and class builds on the last one. Everything is clearly explained and demonstrated. He provides most of the files he uses so you can try it yourself in Excel. The forum is helpful for the more challenging questions on the final quiz. Overall, I think the class is a good pace and the final quiz is representative of what the class covers. That is, not too hard and not too easy.

创建者 MONTCHO H M

•Jul 17, 2018

very interesting course...

创建者 Matija H

•Oct 21, 2017

Excellent and educational course for everyone interested in statistical hypothesis testing.

创建者 Isabel

•Jun 23, 2017

Very good structure with many examples