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Chapter 2
Methods for Describing Sets of Data
2.1
Describing Data Graphically
To complete this section of homework watch Chapter Two, Lecture Examples: 7, 8, 9, 10, 11 and 12.
1. Why do we construct frequency tables/distributions?
2. Wh
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Chapter 8
Tests of Hypothesis: One Sample
8.1
Determining the Claim, Null and Alternative Hypotheses
To complete this section of homework watch Chapter Eight, Lecture Examples: 117 and 118.
For problems 1 6, examine the given statement
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Chapter 7
Confidence Intervals
7.1
Finding Critical Z Values
To complete this section of homework watch Chapter Seven, Lecture Examples: 100 and 101-103.
Directions: Find the critical Z / 2 value given the following confidence levels.
1
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Chapter 5
Normal Random Variables
5.1
Using the Z-table
To complete this section of homework watch Chapter five, Lecture Examples: 75, 76, 77, 78, and 79.
1. Male heights are normally distributed with a mean of 69 inches and a standard
Probability Questions
Basic Probability
-Key Words: Find the probability 1 randomly selected
-Formula(s):
# of times "A" happened
# of ways "A" can happen
P ( A) =
OR P ( A) =
Total # of observations
Total # of possible outcomes
Addition Rule
-Key Words:
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Chapter 3
Probability
3.1
Sample Spaces and Tree Diagrams
To complete this section of homework watch Chapter Three, Lecture Examples: 28 and 29.
1. List the possible outcomes (correct or incorrect) when a person takes 3 guesses on a set
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Chapter 4
Discrete Random Variables
4.1
Probability Distributions for Discrete Random Variables
To complete this section of homework watch Chapter Four, Lecture Example 61.
1. Let x = the number of As you earn from the next five classes
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Chapter 6
Sampling Distributions
6.1
Minimum Variance Unbiased Point Estimators
To complete this section of homework watch Chapter Six, Lecture Examples: 92.5 and 93.
1. If A is used as an estimate of and E A 3 , is A a biased estimator
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Chapter 1
Introduction to Statistics
1.2
Sample Statistics and Population Parameters
To complete this section of homework watch Chapter One, Lecture Examples: 1, 2, and 3.
1. Identify the population and the sample: A researcher wants to
Statistics Notes
Chapter 1
Variables
o Classification
o A) Nature of the values they assume
Qualitative Variables
Non-numerical
o Ex: Social Security, Personal Identification
numbers (PID)
Nominal
o Nominal variables are characterized by
variables that