Chapter 10
STK110
.
10.1 Inferences about the difference between two
population means: and known
Population 1:
Inner-City Store Customers
Population 2
Suburban Store Customers
= mean age of inner-city
store customers
= mean age of suburban
store custome
Probability Distributions
A random variable that may assume either a finite number of values or
an infinite sequence of values such as 0,1,2, is referred to as a
discrete random variable
Experiment
Random variable X
Possible values for
the random variable
Chapter 9 Hypothesis tests
9.1 Developing the null and alternative hypotheses
:
:
Null hypothesis
Tentative assumption about a population parameter
Alternative hypothesis
Opposite of what is stated in
Research hypothesis
Different types of hypothe
Chapter 5
Discrete Probability Distributions
Random Variables
x is a random variable which is a numerical description of the outcome of an experiment.
Discrete: If the possible values change by steps or jumps.
Example: Suppose we flip a coin 5 times and c
Chapter 3 z-Scores
Should I praise him
or scold him?
Dad, I am 1.4 standard deviations
above the mean!
Empirical Rule
100%
95%
68%
3 2
+ + 2
+ 3
Empirical Rule
Histogram of WST133 Sem Test 1
Mean
66
Standard
Deviation 14
65%
94%
Empirical Rule
Mean
Continuous Probability Distributions
Probability Distributions (PD)
Discrete PD
Discrete Uniform
Distribution
Binomial PD
Continuous PD
Uniform PD
Normal PD
t- PD
Chi-square- PD
F- PD
Uniform Distribution
Uniform
Alike
Similar
Equal
Even
Unchanging
Applic
CHAPTER 9
HYPOTHESIS TESTING
Hypothesis tests
9.1 Developing the null and alternative hypotheses
:
Null hypothesis
Tentative assumption about a population
parameter - Manufacturers claim
:
Alternative hypothesis
Opposite of what is stated in 0
Rese
Chapter 15: Surveys and Questionnaires
Introduction
Data gathering techniques are part of the methodological framework (3 rd framework)
The four frameworks
o Conceptual framework
o Theoretical framework
o Methodological framework
o Analytical framework
A
Chapter 12: Fieldwork
Introduction
Fieldwork, as the name suggests, is work that is conducted in the field.
The work in this instance is data gathering, and the field is any setting beyond the desk, the
library and/or the laboratory in which the required
Chapter 19: Analysing quantitative data
Introduction (the analytical framework)
The analysis of data and the presentation of that analysis provide the analytical framework
for the research project.
The analytical framework is the fourth and final framewor
Chapter 10: Understanding Populations and Sampling
Sampling terminology
Population (universe) is any complete group of entities that share some common set of
characteristics.
Population element is an individual member of the population
The population can
Chapter 07 Quantitative Research: An Introduction to
Measurement
What do I measure?
The research statement or question (which provides the conceptual framework for the
research project) is used to decide what concepts need to be measured
Measurement is th
Chapter 11: Writing the research proposal
Generating ideas for research projects (skip pg. 191-196)
Questions in relation to the proposed research idea/ research project
Questions in relation to the literature in the area or field of the proposed research
Chapter 01: Introducing business research
Learning Objectives
Outline and detail the research process and explain the utility of the four frameworks
approach to the research process;
Outline and briefly explain each of the stages in the research process;
Chapter 20: Completing and presenting the research
The final chapter: Drawing conclusions and writing
recommendations
In the final chapter/ section of the research report, the researcher presents conclusions and
recommendations.
This is usually short unle
Chapter 09: Research methodology and design
Introduction
In this chapter the focus is on research methodology.
Data collection methods are a major part of the methodological framework for the research
project.
Thoughts and ideas in relation to the researc
Chapter 06: The literature review
Learning objectives
Identify and source appropriate literature
Evaluate the quality of literature sourced
Evaluate the utility of literature sourced for the research project
Review literature
Create a theoretical framewor
Chapter 02: Developing Research Skills (look through
examples)
Learning Objectives
Recognise their existing level of research skills and identify areas for improvement;
Create a conceptual framework, the first of the four frameworks;
Develop a research st
Chapter 17: Managing data and introducing data
analysis
Introduction
Data: evidence gathered by the researcher for the purpose of the research
Two kinds of data
o Quantitative numerical (in numbers or can readily be converted into numbers)
o Qualitative n
Chapter 14: Using interviews and focus groups
Introduction
Data gathering techniques are part of the methodological framework, the third framework in
the four frameworks approach to the design of the research project
Embedded in each statement of methodol