What is your gender?
What Faculty are you in?
Money motivates employees better than
anything else: Do you agree?
Inference for 2 Populations
Comparison of 2 Population Means (Independent Samples):
H0: 1 - 2 = 0 (1 = 2).
H1: 1 - 2 0 (1 2).
( x1 x 2) (1 2)
( x1 x 2)
AL: z(1 - /2).
Note: Use +z(1 - ) for UTTs and use -z(1 - ) for LTTs.
What value should be used f
Hypothesis Testing: One Population
Hypothesis testing is used to make decisions about a population based on the analysis of sample
statistics. There are always two hypothesis statements which are mutually exclusive and
complementary statements concerning
Simple Linear Regression
Simple linear regression is used to analyze the nature of the relationship between two variables.
The dependent (response) variable is designated by Y and the independent (explanatory) variable
is designated by X. For a given inde
MGCR 271 | Business
January 18, 2012
[email protected][email protected]
2 others for office hours (Yuemei and
Describing Data with Graphs
Data is either quantitative or categorical
Inferential statistics involves using a representative subset of data (a sample)
in order to draw conclusions about unknown characteristics of an entire set of
elements (a population). The estimate of the population parameter is
A random variables numerical value is determined by the outcome of a
i.e. A basketball player shoots three times. We can define a random
variable X as the number of baskets successfully made.
A discrete random variable c
Available data were produced in the past for some other purpose but that
may help answer a present question inexpensively. The library and the
Internet are sources of available data.
Government statistical offices are the primary source for
The normal distribution has two parameters: the mean () and the standard
deviation (). Each different combination of and specifies a different normal
distribution. The normal distribution is symmetrical about its mean and is bellshaped
Inference for Two-Way Tables
Contingency Table Test for Independence:
H0: The two criteria are independent of each other.
H1: The two criteria are not independent of each other.
H0: p1 = p2 = p3 = = pi (The populations are homogeneous).
H1: Not all p
A phenomenon is random if individual
outcomes are uncertain, and there is a
distribution of outcomes in a large
number of repetitions.
The probability of any outcome of a random phenomenon can be
defined as the proportion of times
A taxi company has seven cars stationed at an airport during
that customers request taxis during th
Introduction to Organizational Behavior
Professor Alfred Jaeger
Questionnaire about Older Workers
Sources of Distortion
Understand key elements in project
Depicting a project as a network of activities
Finding project completion time and critical
path (CPM: Critical Path M
Definition of waiting lines and their relevance to
Why do they occur?
How can we model waiting lines?
How can we analyze them?
Understand the importance of inventory
Understand the various inventory models and
the associated inventory management goals
Understand and learn a few of the most
Understand the importance of quality and
Explain the elements of the quality control
Apply Statistical Quality Control to monitor a
What is Operations Management, and
why is it important?
Comparison between Manufacturing and
Service systems (i.e. goods vs.
Types of decisions in Operations
Chapter 3 of:
Managing Business Process Flows, Principles of Operations
Process Performance Evaluation
Process flow measures
Relating flow measures to each other
Analyzing Process Flows Using Littl
INVENTORY MANAGEMENT-Newsvendor Problem
SINGLE PERIOD INVENTORY
Supplement to Chapter 12
Understand when to use the single-period
Analyze the costs and the cost trade-o
STRATEGY, COMPETITIVENESS & PRODUCTIVITY
STRATEGY, COMPETITIVENESS & PRODUCTIVITY
What is Strategy? What is Operations
Different views of Operations Strategy
A graph showing the shape and direction of the underlying relationship between two
Observations are plotted in pairs with one variable plotted on each axis.
Typically, the explanatory or independent variable is plotted on the X axis
Statistics is the science of getting insight from data in context.
Knowing how to carry out calculations or construct graphs little
Knowing which calculations and graphs are appropriate
Knowing what those c