INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
CHAPTER TWO
DESCRIPTIVE STATISTICS:
TABULAR AND GRAPHICAL METHODS
CHAPTER OUTLINE AND REVIEW
In Chapter 1, you were introduced to the concept of statistics and in exercise *6 of that
chapter you were
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Chapter
4
PROBABILITY
P
lease stand up in front of the class and give your oral report on describing data
using statistical methods. Does this request to
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Kinnari Amin
Conditional Probability and General Multiplication Rule
Objectives:
 Identify Independent and dependent events
 Find Probability of independent events
 Find Probability of dependent ev
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
CHAPTER 15
INDEX NUMBERS
LEARNING OBJECTIVES
When you have completed this chapter,
you will be able to:
LO 1
Compute and interpret a simple index.
LO 2
Describe the difference between a
weighted and a
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Kinnari Amin
Conditional Probability and General Multiplication Rule
Objectives:
 Identify Independent and dependent events
 Find Probability of independent events
 Find Probability of dependent ev
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Review for TEST 2 STA 2023
FALL 2013
Name_
Find the mean of the data summarized in the given frequency distribution.
1) A company had 80 employees whose salaries are summarized in the frequency distri
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
SI
for week 2
Practice material
Set Theory
Set and Element
A set may be viewed as a collection of objects, the elements
or members of the set. Usually the set is represented by
capital English alphabe
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
SI
Practice material for week 5
Discrete Probability Distribution
Uniform Distribution:
The simplest of all discrete probability distribution is one in which the random variable assumes all its
values
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Lesson Note:
Topic
:
Course
:
Estimation
Statistical Inference
Statistical Inference
The theory of Statistical inference consists of those methods by which one makes
inferences or generalizations abou
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
SI
Practice material for week 3
Further Topics on Probability
Conditional Probability
The probability of an event B occurring when it is known that some event A has occurred is called a
conditional pr
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
SI
Practice material for week 4
Random Variable:
Random variable can defined as a function whose value is a real number determined by each element in
the sample space is called a random variable OR a
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Regression Equation
Regression Equation:
A mathematical equation that allows us to predict values of one dependent variable from
known values of one or more independent variables is called regression
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Question 1:
(Marks: 3+5=8)
The fourth mean moment of a symmetric distribution is 243. What would
be the value of the standard deviation in order that the distribution may
be mesokurtic?
Solution:
Sta
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Structural Equation Modeling (SEM)
SEM is a comprehensive statistical
approach to testing hypotheses about
relations among observed and latent variables
(Hoyle, 1995).
The set of equations are solved
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Connexions module: m16801
1
Descriptive Statistics: Homework
Susan Dean
Barbara Illowsky, Ph.D.
This work is produced by The Connexions Project and licensed under the
Creative Commons Attribution Lice
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
32
Measures of Central Tendency and Dispersion
In this section we discuss two important aspects of data which are its center and its spread. The mean, median, and the mode are measures of central tend
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Practice material for week 1
Q1.
i.
ii.
How many three digit numbers can be formed from the six digits are 0, 2, 3, 5, 6, 7, and 9, when:
Repetitions are allowed?
Repetitions are not allowed or digit
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Lesson note #
Statistical Inference
Testing of Hypothesis
Type I Error:
Rejection of the null hypothesis when it is true is called a type I error.
Type II Error:
Acceptance of the null hypothesis when
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Analysis of Variance (ANOVA)
One Way Classification
Random samples of size n are selected from each of k populations. It will be assumed
that the k populations are independent and normally distributed
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
quantitative analysis
Introduction to statistics
Instructor: Muzafar Ali Shah
IQRA UNIVERISTY Spring  15
Introduction to statistics
Definition:
Statistics is the study of the collection, organization
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
Quantitative Analysis
Lecture  6
Relative Measures of
Dispersion
v
v
v
v
Coefficient of Range
Coefficient of Quartile Deviation
Coefficient of Mean Deviation
Coefficient of Variation (CV)
12:09:37PM
INTRODUCTION TO STATISTICS FOR BUSINESS AND ECONOMICS
ECON 15419

Spring 2015
PROBLEMS
USING COMBINATIONS
AND PROBABILITY
()
License
Plate Problems
Each of the following problems assumes that a state's license plates consist of a certain
numberof lettersfollowedby a certain num