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
!
!
STAT 201
Introduction to Business Statistics
!
!
!
Class 7: Discrete Probability Distributions - Part 1
Random Variables
Discrete Probability Distributions
Expected Value and Variance
Binomial Probability Distribution
Scores a
I Nett‘lix )1 IE} Blackboard Learn I ' D httpsiﬂlearndcol 3!
[3 Facebook a: is: Blackboard Learn a: @Memiiuechty‘ss x D McGraw-Hill Cori :- \ Googie x
(- - C ﬁ' Dconnectmheducation.:om/’connectfstudentPerforinancedo?repoi‘tName=Student%20PertorinanceSLsec
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
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
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
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
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
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
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.
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
Announcements
!
HW 5 will be available in Learn
!
STAT 201
Introduction to Business Statistics
!
Final Exam
!
!
Class 14: Introduction to Sampling Distributions Part 3
Confidence Intervals for Population Proportion
Determining Sample Size
!
!
!
Due at the
Chapter 4
Introduction to Probability
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 points and the a
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
Chapter 7
Introduction to Sampling 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 provide key point
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
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
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 9
Introduction to Hypothesis Testing
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 points an
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
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
Takeaways from Class 1
!
STAT 201
Introduction to Business Statistics
Class 2: Describing Data by Graphs, Charts, Tables
Frequency Distributions
Histograms
Statistics is the study of the collection, organization,
analysis, interpretation, and presentation
Announcements
Homework 4 due today
!
!
STAT 201
Introduction to Business Statistics
Midterm grading
!
!
Class 12: Introduction to Sampling Distributions
Sampling Error
Sampling Distribution of the Mean
Central Limit Theorem
Sampling Distribution of a Prop
PRE-CLASS SLIDES
Some parts and slides are omitted to aid class discussion, please also obtain
the UPDATED version to be posted on Blackboard Learn after class!
STAT 201
Introduction to Business Statistics
Class 5: Introduction to Probability - Part 1
Bas
Takeaways from Class 2
A frequency distribution is a tabular summary of data
showing the number (frequency) of items of several nonoverlapping classes.
! Relative frequency of a class equals the fraction or
proportion of items belonging to a class.
!
STAT
Announcements
!
Homework 1will be posted to Blackboard Learn today
!
STAT 201
Introduction to Business Statistics
!
!
Class 4: Describing Data by Numerical Measures
Review of Measures of Location
Percentiles, Quartiles
Box and Whisker Plot
Measures of Var