Chapter 8
Hypothesis Testing
Introduction
You have learned about a very important class of statistical methods called hypothesis tests. The
techniques of hypothesis testing provide a formal way to use sample data to test claims made about
population param
Chapter 2
Introduction
You have learned from your own experiences with the Internet that there is a wealth of information in all
sorts of areas. The various divisions and offices of the US Government, corporations both large and
small, and the average ind
Chapter 2
Anthony Hammonds
February 28, 2016
STATS 1127
Introduction
You have learned from your own experiences with the Internet that there is a wealth of information in all sorts of
areas. The various divisions and offices of the US Government, corporat
Chapter 3
Using Statistics to Summarize Data
Introduction
Data available on the Internet or elsewhere may be in raw form, may be presented graphically or
may be summarized using any number of statistics. It is important that be able to collect or
compile
P (A or B) = P (A) + P (B) P (A and B)
Rule (for AND):
n(A and B) means the number of outcomes in both A and B.
n(S) means the total number of possible outcomes
Example:
A die is rolled. What is the probability that the number is even and less than 4?
Eve
Chapter 4
Computing
Probabilities
Introduction
A probability may be a very complicated number to compute. It is reasonably easy to use theoretical
methods when computing probabilities involving decks of cards and coin tosses because you can often
list or
Chapter 7
Confidence Intervals
Introduction
In this project you will compute confidence intervals. In particular, you will compute confidence intervals
for the same quantity measured at different times, and you will then compare these intervals. The subje
Chapter 5
Probability Distributions and
Simulation
Introduction
This project combines a number of aspects of statistics. First you will use probability distributions to model
the possible outcomes of a particular experiment, one with its roots in randomne
Chapter 6
The Central Limit Theorem
Introduction
The text has told you about the Central Limit Theorem and how important its use is in the field of
statistics. At this point you may not fully understand the theorem or may not even be convinced it is true.
STAT1127 Intro Statistics
Exam 1 Study Guide
1.
The weights of 90 students in a school were recorded. The information is displayed in the
following table.
(a)
(b)
(c)
2.
Weight (kg)
Number of students
40 w < 50
7
50 w < 60
28
60 w < 70
35
70 w < 80
20
Wri
Stat1127 Week 1 Notes
Frequency Distribution Ch. 2
Frequency Distribution shows how a data set is
partitioned among all of several categories by listing all
the categories along w/ # of data values in each of the
categories
[Sidebar
Title]
Frequency: # of
Stat 1127
Week 2 Notes
Review week one notes
Constructing a Frequency Distribution
1.
2.
3.
4.
5.
6.
pg. 48
Determine the # of classes (between 5-10) *Given info*
Calculate the class width. ( max min divided by # of classes)
Choose the min value as the 1s
Chapter 5
Probability Distributions and
Simulation
Introduction
Anthony Hammonds
5/2/16
Stats 1127
This project combines a number of aspects of statistics. First you will use probability distributions to model
the possible outcomes of a particular experim