Chapter 8 Confidence Interval Estimation
Inferential statistics enables you to estimate unknown population
characteristics such as a population mean or a population proportion.
2 types of estimates are used to estimate population parameters:
point estimat
Chapter 1 Introduction
Section 1.1 Why Learn Statistics
Statistics the branch of mathematics that transforms numbers into useful
information for decision makers.
Section 1.2 Statistics in Business
Descriptive statistics are the methods that help collect,
Chapter 2 Organizing and Visualizing Data
Section 2.1 Data Collection
Collecting data from every item or individual in the population would be too
difficult or too time-consuming. Because this is the typical case, data collection
almost always involves co
Chapter 3 Numerical Descriptive Measures
Central Tendency the extent to which all the data values group around a
typical or central value.
Variation the amount of dispersion, or scattering, of values away from a
central value.
Shape the pattern of the dis
Chapter 4 Basic Probability
Section 4.1 Basic Probability Concepts
Probability the numeric value representing the chance, likelihood, or
possibility a particular event will occur. It is a proportion, fraction, or
relative frequency that ranges between 0 a
Chapter 5 Discrete Probability Distributions
Section 5.1 The Probability Distribution for a Discrete
Random Variable
Probability distribution for a discrete random variable a mutually
exclusive listing of all possible numerical outcomes for that variable
Chapter 6 - ~he Normal Distribution and Other
Continuous Distributions
Section 6.1- Continuous Probability Distributions
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A continuous probabiFty density function defines the distribution of values
for a continuous random variable. Below is a disp
Chapter 7 Sampling and Sampling Distributions
Section 7.1 Types of Sampling Methods
Frame a listing of items that make up the population, numbered from 1 to
N.
Nonprobability sample you select the items or individuals without
knowing their probabilities o
Chapter 9 Fundamentals of Hypothesis Testing:
One-Sample Tests
In this Chapter, we are going to use a sample mean to validate a claim about
a population mean. We will evaluate the truthfulness of a claim by doing
hypothesis testing.
Ex: Suppose there is a