Module 1 Flashcards
Categorical Variables
represent categories
examples: state, supervisor title, grad degree, beverage, grade of cell reception
Nominal/Scaled
no rankings for different values
examples: beverages
Accepted Results for A Test
who funded the test
questions asked
clear, accurate, unbiased questions
sample size
sample design
continuous numerical
measuring process
examples:
download time
monthly data usage
mins of (phone calls)
loan payments
ratio scaled
true zero point
examples:
download time
discrete numerical
can be counted different levels of precision
examples:
number of anything
income in thousands
owning second home
employee name
major categories of Business Analytics
Precision
Descriptive
predictive
Dashboard in Business Analytics
monitor, graphs and charts, numerical
data mining
Use of data sources
help make business decisions
numerical variables
age
number of employees
salary
value
systematic
N=400 and N=100 17th student
simple random
n=100 equal
stratified
n=930 (gender)
numbers of 000
9 009
64 064
930 930
designed experiment
sample or observational study
