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Essential Statistics for Non-STEM Data Analysts

Essential Statistics for Non-STEM Data Analysts

By : Li
4.6 (10)
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Essential Statistics for Non-STEM Data Analysts

Essential Statistics for Non-STEM Data Analysts

4.6 (10)
By: Li

Overview of this book

Statistics remain the backbone of modern analysis tasks, helping you to interpret the results produced by data science pipelines. This book is a detailed guide covering the math and various statistical methods required for undertaking data science tasks. The book starts by showing you how to preprocess data and inspect distributions and correlations from a statistical perspective. You’ll then get to grips with the fundamentals of statistical analysis and apply its concepts to real-world datasets. As you advance, you’ll find out how statistical concepts emerge from different stages of data science pipelines, understand the summary of datasets in the language of statistics, and use it to build a solid foundation for robust data products such as explanatory models and predictive models. Once you’ve uncovered the working mechanism of data science algorithms, you’ll cover essential concepts for efficient data collection, cleaning, mining, visualization, and analysis. Finally, you’ll implement statistical methods in key machine learning tasks such as classification, regression, tree-based methods, and ensemble learning. By the end of this Essential Statistics for Non-STEM Data Analysts book, you’ll have learned how to build and present a self-contained, statistics-backed data product to meet your business goals.
Table of Contents (19 chapters)
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1
Section 1: Getting Started with Statistics for Data Science
5
Section 2: Essentials of Statistical Analysis
10
Section 3: Statistics for Machine Learning
15
Section 4: Appendix

Chapter 7: Statistical Hypothesis Testing

In Chapter 6, Parametric Estimation, you learned two important parameter estimation methods, namely, the method of moments and MLE. The underlying assumption for parameter estimation is that we know that the data follows a specific distribution, but we do not know the details of the parameters, and so we estimate the parameters.

Parametric estimation offers an estimation, but most of the time we also want a quantitative argument of confidence. For example, if the sample mean from one population is larger than the sample mean from another population, is it enough to say the mean of the first population is larger than that of the second one? To obtain an answer to this question, you need statistical hypothesis testing, which is another method of statistical inference of massive power.

In this chapter, you are going to learn about the following topics:

  • An overview of hypothesis testing
  • Making sense of confidence intervals and...
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Essential Statistics for Non-STEM Data Analysts
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