1
Lecture Notes on Introductory Statistics, IV
(P.P. Leung)
Chapter 4 Probability Concepts ()
Descriptive Statistics () methods for organizing and summarizing data
Inferential Statistics () methods for drawing conclusions about a population ()
from only a
1
Lecture Notes on Introductory Statistics, V
(P.P. Leung)
Chapter 5 Discrete Random Variables (/)
5.1 Discrete random variables and probability distributions Random variable
():
5.2 The Mean and Standard Deviation of a Discrete Random Variable (not requi
1
Lecture Notes on Introductory Statistics, VIII
(P.P. Leung)
Chapter 8 Confidence Intervals for One Population Mean ()
8.1 Estimating a Population Mean ()
8.2 Confidence intervals for one population mean when is known
8.3 Margin of Error ( / )
8.4 Confid
1
Lecture Notes on Introductory Statistics, VII
(P.P. Leung)
Chapter 7 The Sampling Distribution of the Sample Mean ()
7.1 Sampling Error (); The need for sampling distributions
7.2 The mean and standard deviation of cfw_ 's
x
7.3 The sampling distributio
1
Lecture Notes on Introductory Statistics, XII
(P.P. Leung)
Chapter 12 Inferential Statistics for Population Proportions ()
12.1 Confidence Intervals for one Population Proportion ()
12.2 Hypothesis Tests for one Population Proportion ()
12.3 Inferences
1
Lecture Notes on Introductory Statistics, III
(P.P. Leung)
Chapter 3 Descriptive Measures ()
3.1 Measures of Center ()
3.2 Measures of Variation ()
3.3 The Five-Number Summary ()
3.4 Descriptive Measures ()
(5th and 6th lectures)
Descriptive Measures Nu
1
Lecture Notes on Introductory Statistics, IX
(P.P. Leung)
Chapter 9 Hypothesis Tests for One Population Mean ()
9.1 The nature of Hypothesis Testing ()
9.2 Terms, Errors, and Hypotheses ()
9.3 Hypothesis Tests For One Population Mean when is known
9.5 P
1
Lecture Notes on Introductory Statistics, XIV
(P.P. Leung)
Chapter 14 Descriptive Methods in Regression and Correlation ()
Regression ( / / ) = (Linear) data fitting ( / )
Example 1. Two points define a (straight) line. How about 3 points?
2. An example
6 More Inference about a Population
Inference about a Normal Population Mean: Variance Unknown
Section 6.1 Inference about a Normal Population Mean: Variance
Unknown
Assumption The population follows N(, 2).
Let X be the sample mean of a sample taken
from