Assignment 3 STAT 2023 fall 2015
Part One:
The reading and the writing part:
The Empirical Rule. Go to https:/en.wikipedia.org/wiki/68%E2%80%9395%E2%80%9399.7_rule .
1. Read the top section of the above webpage. Summaries in your own words in 5 sentences
Statistics
Chapter4
Lecture4.3
4.3 Random Variables, Probability Distributions,
and Expected Values
Study Objectives:
You should be able to:
 Define random variables
 Distinguish between discrete and continuous random variables
 Work with probability d
Statistics
Chapter5
Lecture5.3
5.3 The Poisson Distribution
Study Objectives:
You should be able to:
 Recognize a Poisson experiment
 Calculate Poisson probabilities using the Poisson formula
 Obtain Poisson probabilities using the Poisson tables
Defin
Statistics
Chapter5
Lecture5.4
5.4 The Normal Distribution
Study Objectives:
You should be able to:
 Recognize the normal distribution
 Calculate z values
 Compute probabilities for normal random variables
As previously discussed,
the binomial and the
Statistics
Chapter5
Lecture5.2
5.2 Determining Binomial Probabilities
Study Objectives:
You should be able to:
 Calculate the number of ways r items can be selected from
n
 Calculate the binomial probabilities using a formula
 Use a binomial table to o
STAT 2023, Assignment 11, Sampling Distribution
Part One:
From this site, https:/en.wikipedia.org/wiki/Sampling_distribution read the sections labelled as
Introduction and Standard Error.
Part Two:
Practice with and thinking about the sampling distributio
Assignment 10 STAT 2023 fall 2015
Normal Distribution
Part One:
More Z table practice:
1. Find z 0.1660 , that is, find zo if P(Z > zo) = 0.1660.
Z0=.97
2. Find the P( Z < 0.55 ).
P(Z<.55)=.29116
3. What does the P( 1.24 < Z < 0.52 ) equal?
P(1.24<Z<
Assignment 6 STAT 2023 fall 2015
Part One:
Reading and Writing:
1. Read this webpage, http:/stattrek.com/probabilitydistributions/binomial.aspx?
Tutorial=AP , and answer the following questions.
a. State two conditions that describe a Binomial Experiment
Assignment 1 STAT 2023 fall 2015
Internet Assignment
1. What is the name of the company that you picked?
Netflix Inc.
2. What is the ticker symbol of the stock you picked? This is the code on the left in the
dropdown box from the search bar.
NFLX
3. Once
Assignment 5 STAT 2023 fall 2015
Part One:
Reading and Writing:
1. Read this webpage, http:/stattrek.com/probabilitydistributions/probabilitydistribution.aspx?Tutorial=Stat , and write about a page summary in your own
words about the information on this
Assignment 8 STAT 2023 fall 2015
Uniform Distribution and Normal Distribution
Part One: Uniform Distribution
The amount of floor glue needed by a carpet laying crew for a oneday shift is uniformly
distributed between the values of 8 and 16 gallons. Use t
Part One: The percent change in 8 stocks over a month were the following:
3.4, 2.1,
1.8, 2.2, 2.8, 1.6, 0.8, 0.9
1. What is the mean of the 8 values? State the value. Write a sentence explaining what
the mean measures about the 8 values.
Mean: .6
The m
Assignment 7 STAT 2023 fall 2015
Part One:
Reading and Writing:
1. Read the webpage, https:/en.wikipedia.org/wiki/Poisson_distribution, down to the section
titled, Properties.
a. Write three sentences on the history of the Poisson distribution.
Poisson di
Assignment 9 STAT 2023 fall 2015
Normal Distribution
Part One:
Practice with the Standard Normal Distribution
1. Find z 0.1660 , that is, find zo if P(Z > zo) = 0.1660.
Z0=.97
2. Find the P( Z < 0.45 ).
P(Z<.45)=.32636
3. What does the P( 1.52 < Z < 1
Statistics
Chapter2
Section 2.1 Unfavorable Opinions &
The Bias Obstacle
Study Objectives:
You should be able to:
Recognize several ways in which statistics is
misused.
Key Terms And Formulae:
Bias a tendency either consciously or
unconsciously to favor o
Statistics

Chapter 12

Lecture 12.3
page 1 of 7
Section 12.3 ChiSquare Testing: The Contingency Table Test
A contingency table is one that shows all the classifications of the variable being studied.
The rows represent one classification category and
STAT 2053 Elementary Statistics
Chapter 2 Describing Distributions
with Numbers
1
Numerical Summaries
Center of the data
mean
median
mode
Variation
range
quartiles (interquartile range)
variance
standard deviation
2
Notation
When we have a set of
STAT 2053 Elementary Statistics
Chapters 3 The Normal Distributions
1
Exploring A Distribution
1. Always plot your data: make a graph, usually a
histogram or stem plot.
2. Look for the overall pattern (shape, center, spread)
and for striking deviations su
STAT 2053 Elementary Statistics
Chapters 8 Producing Data: Sampling
1
Collecting Data
The manner in which we acquire and produce data is very
important in terms of getting sound answers to our
questions.
This chapter focuses on the dos and donts of collec
STAT 2053 Elementary
Statistics
Chapters 9 Producing Data:
Experiments
1
Chapter 9
Chapter 8 focused on proper techniques to
gather data through observation and
questioning. The techniques described do
not influence any of the individuals in the
sample; t
STAT 2053 Elementary Statistics
Chapter 10 Introducing
Probability
Idea of Probability
Probability is the science of chance
behavior
Chance behavior is unpredictable in the
short run but has a regular and
predictable pattern in the long run
this is why
Statistics
Chapter1
1.2 Purpose and Organization of This Tex
Study Objectives:
You should be able to:
Understand the definition of statistics
Distinguish between a population and a sample
Differentiate between parameters and statistics
Understand the
Statistics
Chapter4
Lecture4.1
3.1 Introduction to Data Collection
Study Objectives:
You should be able to:
Understand terms such as
probability experiment,
sample space, and
event
Recognize the various interpretations of the word probability
Work with
Statistics
Chapter4
Lecture4.2
4.2 Probabilities for Compound Events
Study Objectives:
You should be able to:
 Calculate:
 conditional probabilities
 the probability that both events A and B occur
 the probability that either of the events A or B occu
Statistics
Chapter3
Lecture3.2
3.2 Data Organization and Presentation
Study Objectives:
You should be able to:
Order the data into an ascending data
array
Compute the mean for ungrouped data
Compute the median for ungrouped
data
Compute the mode for u
Statistics
Chapter5
Lecture5.1
5.1 Binomial Experiments
Study Objectives:
You should be able to:
 Identify binomial experiments
Definition
Binomial Experiment an experiment that
involves n trials each of which results in a
success or a failure.
The trial
Statistics
Homework 12.2
_

Chapter 12

Homework 12.2
page 1 of 12
Name
From the SelfTesting Review 12.1 (page 455)
1. What is a multinomial experiment?
2. What is the objective of a goodnessoffit test?
3. List the assumptions in a goodnessoffit te
Statistics
Homework 12.3
_

Chapter 12

Homework 12.3
Name
From the SelfTesting Review 12.1 (page 455)
4. What is the objective of a contingency table test or test of independence?
5. List the assumptions in a contingency table test.
9. Find the critic
Statistics

Chapter 12

Lecture 12.2
page 1 of 7
Section 12.2 ChiSquare Testing: The GoodnessOfFit Chi
Square Test
In chapter three, when we computed various measures, we quantitatively used all data items, never
omitting any of them.
In this chapter
STAT 2013 Elementary Statistics
Chapter 1 Picturing
Distributions with Graphs
What is Statistics?
Statistics is the science of
collecting, analyzing, interpreting,
and using data in an effective
manner.
We use statistics to make rational
decisions in unce