Course Catalog 
Resources 
Lifetime Access
Access this case study for life once completed
This project is curated to exhibit the foundational concepts of OLS.
-
Difficulty: AdvancedDesigned for those with a technical background or industry experience
-
Duration: Approximately 3 hours
Course Overview
- The Ordinary Least Squares (OLS) approach is the most frequently used estimation technique for linear models. For linear regression, there are seven conventional OLS assumptions. The first six are required to obtain the most accurate estimations. While the seventh hypothesis has no bearing on the quality of the estimates, analysts frequently evaluate it for other relevant reasons.
- For any retailer, the holiday season is an important period of the year. For a store to effectively plan inventory, investments, and customer interaction strategies for the season, revenue forecasting during this time is essential. A “Linear Regression Model” needs to be produced by the consultant, who claims that it is founded on a set of hypotheses. The executive team of the retailer requires that the data scientist provide data-supported arguments for his assumptions.
- Learn the different assumptions made by the Data Scientist in building a Linear Regression Model.
What’s included
Flexible Scheduling
Start learning online immediately, at your own pace
Desktop Only
We recommend accessing this case study via desktop
Skills you will learn
Associated Learning Tracks
How it Works
Learn new skills that will boost your career by enrolling in courses across data analytics, data science, ML and AI. These courses will utilize readings, videos, quizzes, data cases, and even coding exercises to teach you skills and concepts in a way that will solidify your new knowledge for hands-on application.
With our hands-on projects, you will take your newly learned skills along with our 750+ low-code/no-code functions and embedded coding console to complete milestone-based projects. Once completed, you will have effectively applied new skills and concepts to real-world data cases that can be translated directly into your career.
Complete assessments and track your progress in real-time to benchmark your proficiency in relation to key functional areas. As you progress through your courses, our patented platform will utilize ML and AI to record and analyze your inputs and output to provide active feedback and recommendations that will help you learn more effectively than the standard Letter Grade system used today.
Complete courses to earn sharable certificates and badges. These awarded items will be look great in your portfolio as you showcase your skills and project experience to employers and colleagues.
“Rolai provides contextual upskilling opportunities … on one single platform.”
“An excellent tool for anyone who wants to quickly learn the ropes.”
“Rolai is the best program available for someone looking to enhance their skills”
“Great way to learn data analytics and data science”
“The courses were excellent and covered topics that I didn’t expect”
Rolai’s patented process provides a personalized learning process for each user. Rolai goes deeper than simply learning concepts and testing your skills. At Rolai, learners can apply their skills to actual industry use cases and projects.
Our courses include readings, videos, quizzes, and hands-on data cases that are completed using our virtual lab; give learners an applied learning experience.
No additional tools are needed to begin learning with Rolai. Our virtual lab contains the necessary data workspace and an embedded coding console.
- We have internal SMEs across industries and domains that we work with to develop relevant content and assure quality datasets and problem statements.
- We also work with enterprises and universities to develop new content directed towards their industry and expertise.
