Data Analysis Fundamentals with Excel Год выпуска: 2015 Производитель: Lynda Сайт производителя: lynda.com Автор: Curt Frye Продолжительность: 2:24 Тип раздаваемого материала: Видеоурок Язык: Английский Описание: Microsoft Excel is an important tool for information workers that design and perform data analysis. This course provides an overview of the fundamentals, from performing common calculations to conducting Bayesian analysis with Excel. Author Curt Frye starts with the foundational concepts, including an introduction to the central limit theorem, and then shows how to visualize data, relationships, and future results with Excel's histograms, graphs, and charts. He also covers testing hypotheses, modeling different data distributions, and calculating the covariance and correlation between data sets. The course closes with a look at calculating Bayesian probabilities in Excel. Основы анализа данных в Экселе.
Содержание
Introduction Welcome What you should know Using the exercise files 1. Foundational Concepts of Data Analysis Calculating mean and median values Measuring maximums, minimums, and other data characteristics Analyzing data using variance and standard deviation Introducing the central limit theorem Analyzing a population using data samples Identifying and minimizing sources of error 2. Visualizing Data Grouping data using histograms Identifying relationships using XY scatter charts Visualizing data using logarithmic scales Adding trendlines to charts Forecasting future results Calculating running averages 3. Testing a Hypothesis Formulating a hypothesis Interpreting the results of your analysis Considering the limits of hypothesis testing 4. Utilizing Data Distributions Using the normal distribution Using the exponential distribution Using a uniform distribution Using the binomial distribution Using the Poisson distribution 5. Measuring Covariance and Correlation Visualizing what covariance means Calculating covariance between two columns of data Calculating covariance among multiple pairs of columns Visualizing what correlation means Calculating correlation between two columns of data Calculating correlation among multiple pairs of columns 6. Performing Bayesian Analysis Introducing Bayesian analysis Analyzing a sample problem: Kahneman's Cabs Creating a classification matrix Calculating Bayesian probabilities in Excel Updating your Bayesian analysis Conclusion Further resources
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