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Math 117: Homework 3
Due Tuesday, April 18th
Questions followed by * are to be turned in. Questions without * are extra practice. At least one
extra practice question will appear on each exam.
In all questions except question 7, you may use the following
Math 117: Homework 2
Due Tuesday, April 11th
Questions followed by * are to be turned in. Questions without * are extra practice. At least one
extra practice question will appear on each exam.
Question 1 (Similar to 3.1)
(a) Why is N not a field?
(b) Why
Math 117: Homework 1
Due Thursday, April 6th
Questions followed by * are to be turned in. Questions without * are extra practice. At least one
extra practice questions will appear on each exam.
Question 1 (Similar to 1.2 and 1.5)
(a) Prove by induction th
Data Analysis and Probability Notes
Exam 1 (3/14)
Data Analysis (slides 1-46)
Frequency Tables/Histograms
Grouped Frequency Tables
Classes (4-6)
Lower class limit*
Upper class limit
Width must always be the same
Numbers must fit within the class
Fr
Discrete distribution
Exam 2 (4/4)
Discrete Distribution (slides 1-46)
Notation
[mu, xbar, eta,x tilde, sigma squared, s squared, sigma, s, p, p hat]
Discrete Probability Distribution: the theoretical model of a Frequency
Table and it does not change when
Point and Interval Estimation
Exam 3 Midterm Take home
Point and Interval Estimation:
Notation
[mu, xbar, eta,x tilde, sigma squared, s squared, sigma, s, p, p hat]
Confidence Interval Formulas
1. To construct a CI for a mean of a population where (sigma)
PCC STAT 50
1
Statistics & Probability
Lecture 1
Administrative
Syllabus
Text
Questions?
Introduction to Statistics
The Four Questions of Statistics:
Why Do We Need Statistics? Don't We Have Math?
Statistics is Math For People Who Don't Have a Lot of Mone
PCC STAT 50 / CHC Math/Psych 108
1
Lecture 7
Using Samples to Estimate Population Parameters
7.1
Review
We can use sample statistics to estimate population parameters.
We can estimate using a
Point estimate
A single value
Interval or range of values
Calle
PCC STAT 50
1
Lecture 2
Administrative
Questions?
Homework Questions?
Chapter 2
2.1
Summarizing Data
Important characteristics of data sets
Center
Variation (Spread)
Distribution (Shape)
Outliers (Unusual or Surprising)
Also, Changes over time
2.2
Item 1:
PCC STAT 50
1
Lecture 3
Administrative
Questions?
Homework Questions?
Chapter 3
Describing Data (Basic Statistics)
p.79
3.1
This chapter gives us the math to measure more quantitatively the qualitative concepts of
shape, center, spread, outliers we consid
PCC STAT 50 / CHC Math/Psych 108
1
Lecture 3
Old Business:
Ch. 3 REV p.128
Ch. 3 CUMREV
#1, 2; 8, 9, 10
#1-5; 6
New Business:
Lecture 4
PART 2: PROBABILITY WHAT DO WE EXPECT TO SEE?
Administrative
Questions?
Homework Questions?
Preview: p. 133
Terms to un
PCC STAT 50
1
Lecture 2
Administrative
Questions?
Homework Questions?
Chapter 2
2.1
Summarizing Data
Important characteristics of data sets
Center
Variation (Spread)
Distribution (Shape)
Outliers (Unusual or Surprising)
Changes Over Time
2.2
Item 1: Frequ
Chapter 1 Introduction to Statistics
1.1 Review
Definitions
Data are collections of observations, such as
measurements, genders, or survey response.
Statistics is the science of planning studies and
experiments; obtaining data; and then organizing,
summar
Chapter 4 Probability
4.2 Basic Concepts of Probability
Part I: Basics of Probability
Definitions:
An event is any collections or outcomes of a
procedure.
A simple event is an outcome or an event that
cannot be further broken down into simpler
components.
Chapter 9 Inferences from Two Samples
9.1 Review and Preview
Chapter 7 introduced methods for constructing confidence interval estimates of a population
proportion, population mean, or a population standard deviation or variance. Chapter 8
introduced meth
Chapter 8 Hypothesis Testing
8.1 Review and Preview
Chapter 7 focuses on the true core of inferential statistics in which sample data are used to
estimate values of population parameters including proportions, means and variances. This is
one of the two m
Chapter 7 Estimates and Sample Sizes
7.1 Review and Preview
Major Activities of Inferential Statistics
1. Use sample data to estimate values of population parameters (such as a population proportion
or population mean).
2. Test hypotheses (or claims) made
Chapter 10 Correlation and Regression
10.1 Review and Preview
The main objective in this chapter is to analyze paired sample data. We have learnt the methods
for testing hypotheses and constructing confidence intervals for the mean of the different from e
Data
Type
Number of
Samples
Parameter
One Sample
Attribute
Data
Proportion
Conditions
Click For The Test Template
Large
Large Sample
Sample Size
Size
Small
Small Sample
Sample Size
Size
Two Samples
Mean
3. Multiple Proportions Chi Square Test
Variance
Kno