STAT 201
Binomial & Master subtitle style
Click to editPoisson Distribution
9/26/11
Binomial-distribution Properties:
1.
2.
3.
4.
Experiment consist of n identical &
independent trials
Each trial has only two outcomes,
labeled as success and failure
the p
Announcements
Homework 1
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STAT 201
Introduction to Business Statistics
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Class 7: Discrete Probability Distributions - Part 1
Random Variables
Discrete Probability Distributions
Expected Value and Variance
Binomial Probability Distribution
Scores a
Sampling Distributions
STAT201
Click to edit Master subtitle style
9/26/11
Example 1. Sample Mean
When its ovens are working properly, the
time required to back fruit pies at Ellardo
Bakeries is normally distributed with a
mean of 45 minutes and a standar
Section 8 Examples:
For each of the following, indicate whether the data are cross-sectional or time-series:
a) Quarterly employment rates
b) Unemployment rates by state
c) Monthly sales
d) Employment satisfaction data for a company.
a)Timeseries
b)Crosss
Chapter 14
Introduction to Linear Regression and Correlation Analysis
When applicable, selected problems in each section will be done following the appropriate step-by-step procedures
outlined in the corresponding sections of the chapter. Other problems w
Chapter 8
Estimating Single Population Parameters
When applicable, selected problems in each section will be done following the appropriate step-by-step procedures
outlined in the corresponding sections of the chapter. Other problems will provide key poin
Section 7 Examples:
Describe how systematic random sampling could be used to select a random sample of 1,000
customers who have a CD at a commercial bank. Assume that the bank has 25,000 customers
who own a CD.
FromanumberedlistofallcustomerswhoownaCDtheb
Statistics a science that deals with the methods of collecting, organizing, and summarizing data in such a way that valid conclusions can be drawn from them. NOT: selecting the right data to support a hypothesis Descriptive Statistics collecting, o
STAT201Recitation
Week 6: Quiz 7; Room 207 (Thursday 1~4)
Q1
ne of the reasons for taking a sample instead of conducting
a census is this:
A sample is difficult to take.
B. A sample is more accurate than census.
C. A sample can not be trusted.
D. Accessin
Chapter 6
Introduction to Continuous Probability Distributions
When applicable, selected problems in each section will be done following the appropriate step-by-step procedures
outlined in the corresponding sections of the chapter. Other problems will pro
Principles of Microeconomics
ECON 201
Spring 2011/2012
MIDTERM II PRACTICE
1. A movement along a demand curve from one price-quantity combination to another is called
A. a change in quantity demanded.
B. a shift in the demand curve.
C. a change in demand.
Decision Sciences
LeBow College of Business
Drexel University
3220 Market Street
Philadelphia, PA 19104
STAT 201 Intro to Business Statistics
Practice Midterm I
Name (Last, First) :
Student ID# :
Part I. T/F and Multiple Choice Questio
Chapter 2
Graphs, Charts, and TablesDescribing Your Data
When applicable, the first few problems in each section will be done following the appropriate step by step
procedures outlined in the corresponding sections of the chapter. Following problems will
Chapter 3
Describing Data Using Numerical Measures
When applicable, the first few problems in each section will be done following the appropriate step-by-step
procedures outlined in the corresponding sections of the chapter. Following problems will provid
STAT 201
Introduction to Business Statistics
4 Credits
Fall 2016 - Section 001
Class Time: Monday, Wednesday 10:00 11:50am
Class Location: Pearlstein 101
1. INSTRUCTOR
Dr. Merrill Liechty
Office Location: 835 Gerri C. LeBow Hall
Office Hours: Monday 2:00
STAT201001IntroductiontoBusinessStatistics
Winter20162017
This introductory first course in business statistics focuses on applications of data analysis and
statistics to business and economics. Topics covered include descriptive statistics and graphical
Chapter 1
The Where, Why, and How of Data Collection
The more difficult problems in this chapter are:
For Section 1.1
1.8, 1.9, 1.15, 1.16
For Section 1.2
1.28, 1.29, 1.30, 1.31
For Section 1.3
1.40, 1.46, 1.47, 1.48
For Section 1.4
1.57, 1.58
For End of
Chapter 8
Estimating Single Population Parameters
When applicable, selected problems in each section will be done following the appropriate step-by-step procedures
outlined in the corresponding sections of the chapter. Other problems will provide key poin
Practice Exam (or Quiz) Problems
Dr. Jinwook Lee
Problem 1. Suppose that 5 percent of men and 0.25 percent of women are color-blind. A color-blind person
is chosen at random. What is the probability of this person being male? Assume that there are an equa
Sampling Error
Sample mean - Population mean
(sum values/sample) - (sum values/population)
z-value for Sampling Distribution of x
z = (sample mean - pop. mean)/(pop. stdev./sample size)
Finding the Sample Size
n = (z^2p(1-p)/e^2
Interval
zx = NORM.S.INV(1
Statistics is the study of the collection, organization, analysis, interpretation, and presentation of data.
Descriptive statistics: describe data numerically or graphically. (Collecting, presenting, and describing data)
Inferential statistics: Drawing co
Takeaways from Class 12: Sampling Distribution
Sampling Distribution:
STAT 201
Introduction to Business Statistics
Class 13: Introduction to Sampling Distributions Part 2
Sampling Distribution for the Proportion
Confidence Intervals
Confidence Intervals f
Announcements
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STAT 201
Introduction to Business Statistics
Class 5: Introduction to Probability - Part 1
Basic Elements of Probability Theory
Assigning Probabilities to Events
Additive Rules of Probability
Compound Events
Mutually Exclusive Events
Homew
Takeaways from Class 5
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Probability
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STAT 201
Introduction to Business Statistics
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Assigning Probabilities
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Classical Probability
Assessment: All outcomes
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Relative Frequency of
Occurrence: Based on actual
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Subjective Probability
Assessment: Based o
Announcements
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STAT 201
Introduction to Business Statistics
!
!
Class 8: Discrete Probability Distributions Part 2
Binomial Distribution
Poisson Distribution
Homework 2 available for pick up now
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Mean: 49.4/60 (82%)
Standard Deviation: 8.7/60 (14%)
Ho
Continuous random variables
Continuous random variable: When a random variable can take any real-number
value (in an open or closed range)
STAT 201
Introduction to Business Statistics
Class 10: Continuous Probability Distributions Part 1
Normal Distributi
Announcements
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Homework 1will be posted to Blackboard Learn today
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STAT 201
Introduction to Business Statistics
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Class 4: Describing Data by Numerical Measures
Review of Measures of Location
Percentiles, Quartiles
Box and Whisker Plot
Measures of Var