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所在平台: Coursera |
课程主页: https://www.coursera.org/learn/descriptive-statistics-statistical-distributions-business-application
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课程名称:基本数据描述、统计分布及其在商业决策中的应用 课程概述:随着行业对商业统计理解与应用能力的要求不断提升,掌握商业统计知识对于正确解读数据至关重要。缺乏统计知识可能导致企业做出错误决策,进而产生负面后果。本课程旨在向您介绍商业统计,我们将首先讨论描述性统计的概念,即通过几个数值对数据进行总结。课程介绍了不同类别的描述性指标及其在Excel中的计算函数。随后,课程讲解了概率和不确定性的概念,以及样本与总体数据在相关商业实例中的应用。这将引入各种统计分布和其Excel函数,以便对商业过程进行建模或近似。您将在课程中通过易于理解的Excel示例应用这些描述性数据指标和统计分布。 完成课程作业要求学生必须有Microsoft Excel的使用权限。 ________________________________________ 第一周 模块1:基本数据描述 在此模块中,您将理解、计算并解释各种描述性或概要数据指标。这些描述性指标通过几个数值来总结和展示数据。课程介绍并演示了相应的Excel函数来完成这些计算。 课程内容包括: - 描述性数据的类别 - 中心趋势的指标,包括均值、中位数、众数及其解释与计算 - 数据的分散度指标,包括范围、四分位范围、标准差和方差 - 箱型图 - 利用经验法则和切比雪夫定理解读标准差指标 ________________________________________ 第二周 模块2:关联的描述性指标、概率和统计分布 本模块介绍协方差和相关性指标及其相应的Excel函数。您将理解因果关系与相关性的概念。接着,模块引入概率和随机变量,并开始介绍统计分布。 课程内容包括: - 关联的指标——协方差和相关性指标;因果关系与相关性的区别 - 概率与随机变量;离散数据与连续数据 - 统计分布概论 ________________________________________ 第三周 模块3:正态分布 本模块介绍正态分布和使用Excel计算概率及各种结果的函数。 课程内容包括: - 概率密度函数和曲下面积作为概率的度量 - 正态分布(钟形曲线)、Excel中的NORM.DIST和NORM.INV函数 ________________________________________ 第四周 模块4:工作与分布(正态、二项、泊松)、总体与样本数据 在本模块中,您将见识正态分布的多种应用,并将介绍二项分布和泊松分布。课程还将引入中心极限定理,以便更好地理解样本数据与总体数据之间的关系。 课程内容包括: - 正态分布的多种应用 - 二项和泊松分布 - 样本与总体数据的关系;中心极限定理 ________________________________________
Part: 1
Title:Basic Data Descriptors
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Part: 2
Title:Descriptive Measures of Association, Probability, and Statistical Distributions
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Part: 3
Title:The Normal Distribution
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Part: 4
Title:Working with Distributions (Normal, Binomial, Poisson), Population and Sample Data
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The ability to understand and apply Business Statistics is becoming increasingly important in the industry. A good understanding of Business Statistics is a requirement to make correct and relevant interpretations of data. Lack of knowledge could lead to erroneous decisions which could potentially have negative consequences for a firm. This course is designed to introduce you to Business Statistics. We begin with the notion of descriptive statistics, which is summarizing data using a few numbers. Different categories of descriptive measures are introduced and discussed along with the Excel functions to calculate them. The notion of probability or uncertainty is introduced along with the concept of a sample and population data using relevant business examples. This leads us to various statistical distributions along with their Excel functions which are then used to model or approximate business processes. You get to apply these descriptive measures of data and various statistical distributions using easy-to-follow Excel based examples which are demonstrated throughout the course. To successfully complete course assignments, students must have access to Microsoft Excel. ________________________________________ WEEK 1 Module 1: Basic Data Descriptors In this module you will get to understand, calculate and interpret various descriptive or summary measures of data. These descriptive measures summarize and present data using a few numbers. Appropriate Excel functions to do these calculations are introduced and demonstrated. Topics covered include: • Categories of descriptive data • Measures of central tendency, the mean, median, mode, and their interpretations and calculations • Measures of spread-in-data, the range, interquartile-range, standard deviation and variance • Box plots • Interpreting the standard deviation measure using the rule-of-thumb and Chebyshev’s theorem ________________________________________ WEEK 2 Module 2: Descriptive Measures of Association, Probability, and Statistical Distributions This module presents the covariance and correlation measures and their respective Excel functions. You get to understand the notion of causation versus correlation. The module then introduces the notion of probability and random variables and starts introducing statistical distributions. Topics covered include: • Measures of association, the covariance and correlation measures; causation versus correlation • Probability and random variables; discrete versus continuous data • Introduction to statistical distributions ________________________________________ WEEK 3 Module 3: The Normal Distribution This module introduces the Normal distribution and the Excel function to calculate probabilities and various outcomes from the distribution. Topics covered include: • Probability density function and area under the curve as a measure of probability • The Normal distribution (bell curve), NORM.DIST, NORM.INV functions in Excel ________________________________________ WEEK 4 Module 4: Working with Distributions, Normal, Binomial, Poisson In this module, you'll see various applications of the Normal distribution. You will also get introduced to the Binomial and Poisson distributions. The Central Limit Theorem is introduced and explained in the context of understanding sample data versus population data and the link between the two. Topics covered include: • Various applications of the Normal distribution • The Binomial and Poisson distributions • Sample versus population data; the Central Limit Theorem