Publications by Shiju Zhang
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One-Way ANOVA App Introduction Input Data Data Frame Summary Statistics Boxplots Results Fisher's LSD Explanation Introduction This application performs One-Way ANOVA (Analysis of Variance) to compare means across multiple groups. One-Way ANOVA is a statistical method used to determine if there are statistically significant differences between th...
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Chapter -2: Articles to Read (Optional) -1. Intro to R: https://bookdown.org/dli/rguide/pie-chart.html#basic-r-pie-chart 0. Applied predictive modeling: https://vuquangnguyen2016.files.wordpress.com/2018/03/applied-predictive-modeling-max-kuhn-kjell-johnson_1518.pdf Raskin, R.; Terry, H. (1988). “A principal-components analysis of the Narcissist...
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1. Introduction We use the data from …. I propose the following 10 questions based on my own understanding of the data. What is the mean of cost for all the colleges in the data? What is the correlation between cost and average SAT score? What is the distribution of cost? Analysis We will explore the questions in detail. college = read.csv("h...
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The t-Test In educational research, t-tests are commonly used to analyze differences between two groups or two conditions. Here are a few examples: Comparing Test Scores Between Two Classes Example: An educator wants to compare the final exam scores of two different classes taught by different teachers to see if there is a significant difference ...
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Chapter 1: Introduction to Data Science Definition and Importance of Data Science Overview of the Data Science Process Career Paths in Data Science Chapter 2: Mathematical Foundations for Data Science Basic Algebra Variables Mathematical Functions Function Notation and Evaluation Types of Functions (linear, quadratic, exponential, logarithmic) ...
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Instructor’s Contact E-Mail: szhang@stcloudstate.edu Office: CH366AF Lectures & Office Hours Students are expected to adhere to the guidelines provided in the “Announcement” section on D2L. In order to facilitate your learning experience, relevant links have been established, including access to this syllabus, course lecture notes, and poten...
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Getting Started Using the SAS Programming Language SAS programs are constructed from two basic building blocks: DATA steps and PROC steps. A data step can be used to access raw data to create SAS data ready for further manipulation or analysis. A data step can also be used to modify SAS data already created. A procedure step can be used to work wi...
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Purpose of the Course The purpose of this course is to help teachers in Zanzibar improve their skills in teaching math and coding. We aim to provide teachers with easy-to-use tools and methods to make these subjects engaging and clear for their students. Math and coding are important skills now and in the future. By training teachers, we hope to en...
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Introduction Data visualization is a powerful and essential tool in the realm of data analysis and communication. Its importance stems from its ability to make complex data more accessible, understandable, and insightful. Here are several key reasons why data visualization is crucial: Data Understanding: Visualizations provide a clear and intuitive...
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Chapter 1. Introduction and Overview When tossing a coin twice, we may get a sum of 2, 3, 4, …, or 12 points, so the result is uncertain. What is the most likely sum? Uncertainty refers to the situation where results or outcomes are not completely determined and depend on a number of factors and pure chance. It exists every moment in everyday lif...
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