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  • 1
    Language: English
    Pages: 1 online resource (1 volume) , illustrations
    Keywords: Mathematical statistics ; Sampling (Statistics) ; Electronic books ; Electronic books ; local
    Abstract: Statistical methods are central to the techniques involved in capturing value from data. While there are many resources that teach basic statistics, it's not as common to find statistics approached through a data science perspective. In this lesson, you'll learn about key statistical concepts-sampling distribution and variability, bootstrapping, and confidence intervals-as they relate directly to data science. What you'll learn-and how you can apply it You'll learn how sampling distribution and sampling variability impact the results of statistical and machine learning models and impact your data quality. You'll also learn the bootstrap procedure-an easy and effective way to estimate the sampling distribution of a statistic, or of model parameters. Discover how to utilize confidence intervals-a method to express the potential error in a sample estimate, and present your estimates as an interval range, to communicate the potential error in an estimate, and learn whether you need a larger sample of data. This lesson is for you because: You're a data scientist or analyst working with data, and want to gain beginner-level knowledge of key statistical concepts to improve your data models and data quality. Prerequisites: Basic familiarity with coding in R Materials or downloads needed: None
    Note: "From Practical statistics for data scientists by Peter Bruce and Andrew Bruce"--Cover. - Date of publication from resource description page. - Includes bibliographical references. - Description based on online resource; title from title page (Safari, viewed February 16, 2017)
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  • 2
    Language: English
    Pages: 1 online resource (1 volume) , illustrations
    Keywords: Mathematical statistics ; Sampling (Statistics) ; Electronic books ; Electronic books ; local
    Abstract: Data scientists are faced with the need to conduct continual experiments, particularly regarding user interface and product marketing. Designing experiments is a cornerstone of the practice of statistics, with clear application to data science. In this lesson, you'll learn about A-B testing and hypothesis , or significance tests -critical aspects of experimental design for data science. What you'll learn-and how you can apply it You will learn the central concepts of A-B testing, understand its role in designing and conducting data science experiments, and the characteristics of a proper A-B test. Through a series of sample tests, you'll learn how to interpret results, and apply that insight to your analysis of the data. Since A-B tests are typically constructed with a hypothesis in mind, you'll also learn how to conduct various hypothesis , or significance tests , enabling you to avoid misinterpreting randomness. This lesson is for you because You are a data scientist or analyst working with data, and want to gain beginner-level knowledge of key statistical concepts to improve the design, and outcome of your experimental tests with data. Prerequisites: Basic familiarity with coding in R Materials or downloads needed: n/a
    Note: "From Practical statistics for data scientists by Peter Bruce and Andrew Bruce"--Cover. - Date of publication from resource description page. - Includes bibliographical references. - Description based on online resource; title from title page (Safari, viewed February 16, 2017)
    Library Location Call Number Volume/Issue/Year Availability
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  • 3
    Language: English
    Pages: 1 online resource (xxiv, 404 p.) , ill.
    Edition: 2nd ed.
    Parallel Title: Erscheint auch als
    Keywords: Microsoft Excel (Computer file) ; Business ; Data processing ; Data mining ; Electronic books ; local
    Abstract: Data Mining for Business Intelligence, Second Edition uses real data and actual cases to illustrate the applicability of data mining (DM) intelligence in the development of successful business models. Featuring complimentary access to XLMiner®, the Microsoft Office Excel® add-in, this book allows readers to follow along and implement algorithms at their own speed, with a minimal learning curve. In addition, students and practitioners of DM techniques are presented with hands-on, business-oriented applications. An abundant amount of exercises and examples, now doubled in number in the second edition, are provided to motivate learning and understanding. This book helps readers understand the beneficial relationship that can be established between DM and smart business practices, and is an excellent learning tool for creating valuable strategies and making wiser business decisions. New topics include detailed coverage of visualization (enhanced by Spotfire subroutines) and time series forecasting, among a host of other subject matter.
    Note: Description based on print version record. - Includes bibliographical references and index
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