Review for Exam I
Hello, dear friend, you can consult us at any time if you have any questions, add WeChat: daixieit
Review for Exam I
Chapters 1 & 2
Have a working definition of all the terms in Ch. 1 and 2. Reading the chapters will aid you in this endeavor.
Data Analytics
Business Intelligence and IBM’s 4 Vs
Decision Support Systems
Data Mgt.
Model Mgt.
Communication Systems
Big Data
Data Mining
Descriptive Statistics
Predictive Statistics
Prescriptive Statistics
Visualization
Tag Clouds
Metrics
Discrete Variables
Continuous Variables
Scales of Measurement
Nominal
Ordinal
Decision Models
Algorithms
Uncontrollable vs Decision Variables
Uncertainty and Risk
Deterministic Models
Stochastic Models
Steps in Analyzing a Problem
ETL
Internet of Things
Transactional Data
Customer Data
Demographics
Metadata
Structural
Descriptive
Data Warehouses
Know the largest and why it is unique, and what does it offer clients. (See the Switch SUPERNAP file on Canvas.)
Know why many of the largest warehouses are in Virginia.
OLAP
Real time processing
OLAP Cubes
Steps in Data Mining
Prepping Data
Types of mathematical models
Linear Regression
Logistic Regression
Supervised Models vs Unsupervised
Data- Training Sets vs Test Sets
Decision Trees vs Neural Networks
Watson
What is implementation?
Ch. 3 Know the definitions in Ch. 3
Simple Linear Regression – Line of Best Fit, Least Squares Equation
Slope and its symbol
Y-Intercept
Scatterplots
Correlation, r
Coefficient of Determination, R square
Standard Error of the Estimate and its interpretation (Root MSE)
Interpret a Confidence Interval on the slope.
Test the slope for significance. (Know how to set up the hypothesis, find the test statistic, p-value, and state the conclusion.)
What does a slope of 0 imply?
Normal, Suspicious, and Severe Outliers and how to treat them
Predicted Y, Confidence Interval on the Mean of Y, Prediction Interval for an Individual value of Y.
Residuals
Assumptions: Mean of 0, No severe Outliers, Normally Distributed, Randomly Distributed
Interpreting the Confidence Interval on a Predicted Y
Interpreting the Prediction or Individual Interval on Predicted Y
Half of the test will be over Ch. 3 terms and questions just like Peloton on You Tube, Ch. 3 Handout (Clear Blue Water), Project 3, and examples in the book.
2023-07-14