Sampling Distribution and
Statistical Inference
Population and Sample
It is generally impossible to study an entire population
(every individual in a country, all college students,
every geographic area, etc.).
researchers typically rely on samplingto acq
MBA 602: Decision Analysis
Weihua Zhao
College of Business
University of Louisville
Fall 2016
Introduction
How to make a decision?
We are bombarded by data in our everyday
lives.
What do the data tell me?
Statistics is the science of collecting,
organi
Multiple Linear Regression
Multiple Regression
So far, weve looked at linear regression models using
one independent (x) variable
Often times, outcomes are influenced by multiple
variables
We continue our study of regression analysis by
considering sit
Simple Linear Regression
Many interesting examples of the use of statistics involve relationships between pairs
of variables.
What is an association between variables?
Two variables are associated if knowing the value of one of the variables tells you
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