Chapter 9
Section 2
Confidence Intervals about a
Population Mean where
the Population Standard Deviation
is Unknown
Basic Statistics Chapter 9 Slide 1
Chapter 9 Section 2
Learning objectives
Know the properties of t-distribution
2 Determine t-values
3 Co
El Tringulo de las
Bermudas
El Tringulo de las Bermudas
El Tringulo de las Bermudas
El
Tringulo de las Bermudas extiende de
Bermuda a Puerto Rico y a Miami.
Es un place cuando barcos y avines
desaparecieron con no explicacin bueno.
Cubre un distancia d
Name:_ANSWERS_
Homework Assignment #5 Basic Statistics MTH141 Spring 2012
Please staple these pages together I will deduct 2 pts if not stapled when turned in
1. A study conducted by a TV station showed the number of televisions per household and the
corr
For all questions, in addition to your answer, please
write down what you entered into your calculator.
Name:_ANSWERS_
Homework Assignment #7 Basic Statistics MTH141 Spring 2012
Please staple these pages together I will deduct 2 pts if not stapled when tu
Name: _ANSWERS_
Homework Assignment #4 Basic Statistics MTH141 Spring 2012
Please staple these pages together I will deduct 2 pts if not stapled when turned in
1. The following data represents the number of times students missed a class and the average
fi
Name:_Answers_
For all questions, in addition to your answer, please
write down what you entered into your calculator.
Homework Assignment #6 Basic Statistics MTH141 Spring 2012
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Name: _ANSWERS_
Homework Assignment #3 Basic Statistics MTH141 Spring 2012
Please staple these pages together I will deduct 2 pts if not stapled when turned in
1. (2 pts) The average (mean) score in a golf tournament was 74 strokes with a standard
deviati
MTH 141 Spring 2012 - Homework #2
Answers
MTH141 Basic Statistics Questions
In a relative frequency distribution, what should the relative frequencies add up to? By this we
mean, what is the total of all the values in the relative frequency column? (1.0 o
MTH 141 Spring 2012 - Homework #1
Identify the following as either a parameter or statistic:
The average score for a class of 35 students on an exam. (parameter)
The class is a population (the 35 students in the class) so the average is a parameter.
In a
Facebook is a social medium whereby we can exchange pictures, ideas, and
keep in touch with long-lost friends as well as loved ones far away. However, it has also
become a forum for society to unknowingly display their psyche to the public. Most
users hav
Chapter 9
Estimating the Value of a Parameter
Using Confidence Intervals
Basic Statistics Chapter 9 Slide 1
Overview
We apply the results about the sample mean to
the problem of estimation
Estimation is the process of using sample data
to estimate the v
Chapter 7
The Normal Probability
Distribution
Basic Statistics Chapter 7 Section 1 Slide 1
Overview
The normal distribution models bell shaped
variables
The normal distribution is the fundamental
distribution underlying most of inferential
statistics
T
Chapter 7
The Normal Probability
Distribution
Basic Statistics Chapter 7 Section 2 Slide 1
Overview
The normal distribution models bell shaped
continuous variables
The normal distribution is the fundamental
distribution underlying most of inferential
st
Chapter 7
The Normal Probability
Distribution
Basic Statistics Chapter 7 Section 3 Slide 1
Overview
The normal distribution models bell shaped
variables
The normal distribution is the fundamental
distribution underlying most of inferential
statistics
T
Chapter 5
Probability
Basic Statistics Chapter 5 Slide 1
Chapter 5
When we talk about probability, we are talking
about a (mathematical) measure of how likely it
is for some particular thing to happen
Probability deals with chance behavior
We study out
Chapter 5 Section 4
Learning objectives
Compute conditional probabilities
2 Compute probabilities using the General Multiplication
Rule
1
Fundamentals of Statistics Chapter 5 Slide 1 of 51
Chapter 5 Section 4
For or probabilities
The Addition Rule appl
Chapter 5
Review of Probability
Fundamentals of Statistics Chapter 5 Review Slide 1
Chapter 5 Review
Experiment is a repeatable process where the
results are uncertain
Outcome is one specific possible result
The set of all possible outcomes is the samp
Chapter 6
Section 2
The Binomial
Probability Distribution
Basic Statistics Chapter 6 Review Slide 1
Chapter 6 Section 2
A binomial experiment is an experiment with the
following characteristics
The experiment is performed a fixed number of times,
each t
Basic Statistics
MTH-141
Basic Statistics Chapter 1 Slide 1
How to Study for this Class
Chapters 1 thru 3 are relatively easy
Chapter 4 gets a little harder
Chapters 5 thru 10 get progressively more difficult
Dont get lulled into thinking this course is g
Part II
Descriptive
Statistics
Basic Statistics Chapter 2 Slide 1
Part 2 Descriptive Statistics
Chapters 2 through 4 cover Descriptive Statistics
After we collect the raw data (from a sample
survey or a designed experiment), we can
Describe the data us
Chapter 3
Section 3
Measures of Central Tendency and
Dispersion from Grouped Data
Basic Statistics Chapter 3 Slide 1
Chapter 3 Section 3
Learning objectives
The mean from grouped data
2 The weighted mean
3 The variance and standard deviation for grouped
Part II
Descriptive
Statistics
Basic Statistics Chapter 2 Slide 1
Section 2.1 Example 1
Problem #17 on page 72
Response
Frequency
Rel. Freq.
Never
125
125 / 4776 = 0.026
Rarely
324
324 / 4776 = 0.068
Sometimes
552
552 / 4776 = 0.116
Most of the time
1257
Chapter 4
Describing the Relation
Between Two Variables
Basic Statistics Chapter 4 Slide 1
Overview
Data for a single variable is univariate data
Many or most real world models have more than
one variable multivariate data
In this chapter we will study
Chapter 3
Numerically
Summarizing Data
Basic Statistics Chapter 3 Slide 1
Overview
How could we describe or summarize the
distribution of data in numeric ways?
In this chapter, we will discuss
Measures of the center of a set of data
Measures of the sp
Russian Political Leadership
Mackenzie Martin
Hour 5
Lenin
Stalin
Khrushchev
Brezhnev
Andropov/
Chernenko
(1917-1924)
(1924-1953)
(1953-1964)
(1964-1982)
(1982-1984)
(1984-1985)
- Influenced by older
brother Alexander
Ulyanov with his
revolutionary views