Chapter 6: Probability
Probability
Probability is a method for measuring and
quantifying the likelihood of obtaining a specific
sample from a specific population.
We define probability as a fraction or a
proportion.
The probability of any specific outc
Lecture Suggestions
Anxiety about the course: This is not a math
class! I know that no one picked Statistics as an
elective because it looked like a fun class :)
However, I will try to make it easier and more
enjoyable (less painful) than you would predi
Statistical Procedures and Measurement in Education
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Fall 2016
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Statistical Procedures and Measurement in Education
EDUCATION 5313

Fall 2016
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EDUC 5313 Summer 2016. Problem Set 1:
Instructions: You may print out this page and write your answers on this sheet. Do not forget to
write down your name and the time it took you to complete this assignment at the bottom of this
page.
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Statistical Procedures and Measurement in Education
EDUCATION 5313

Fall 2016
EDUC 5313 Fall 2015. Problem Set 4;
Instructions: You may print out this page and write your answers on this sheet. Do not forget to write
down your name and the time it took you to complete this assignment at the bottom of this page.
1. Describe the circ
Statistical Procedures and Measurement in Education
EDUCATION 5313

Fall 2016
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EDUC 5313 Fall 2015. Problem Set 2;
1. A normal distribution has a mean of ^ = 100 with o = 20. Find the following probabilities:
a. p(X>l02)
c. p(X<130)
b. p(X<65)
d. p(95<X<105)
fits/ ^ oi^
7^
^
a) lf
^
^ 0,
^0
i) jf>(Y i 6J)^
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Chapter 4: Variability
Variability
The goal for variability is to obtain a measure of
how spread out the scores are in a distribution.
A measure of variability usually accompanies a
measure of central tendency as basic descriptive
statistics for a set o
11/2/15
Chapter 11: The t Test for Two
Related Samples
RepeatedMeasures Designs
The relatedsamples hypothesis test allows
researchers to evaluate the mean difference
between two treatment conditions using the data
from a single sample.
In a repeatedm
Chapter 8: Introduction to Hypothesis
Testing
Hypothesis Testing
A hypothesis test is a statistical method that
uses sample data to evaluate a hypothesis
about a population.
The general goal of a hypothesis test is to rule
out chance (sampling error) as
Statistical Procedures and Measurement in Education
EDUCATION 5313

Fall 2016
EDUC 5313 Fall 2015, Problem Set 5:
Instructions: You may print out this page and write your answers on this sheet. Do not forget to
write down your name and the time it took you to complete this assignment at the bottom of this
page.
Describe what is me
Statistical Procedures and Measurement in Education
EDUCATION 5313

Fall 2016
EDUC 5313 Fall 2015. Problem Set 3;
1. Some researchers claim that herbal supplements such as ginseng or ginkgo biloba enhance
human memory. To test this claim, a researcher selects a sample of n = 25 college students.
Each student is given a ginkgo bilob
Statistical Procedures and Measurement in Education
EDUCATION 5313

Fall 2016
Quiz4
https:/moodle.na.edu/mod/quiz/review.php?attempt=55508
Question 1
Correct
Mark 1.00 out of 1.00
A random sample of n = 4 scores is obtained from a normal population with = 20 and =
4. What is the probability that the sample mean will be greater tha
Statistical Procedures and Measurement in Education
EDUCATION 5313

Fall 2016
Essentials of Statistics for the Behavioral Sciences Gravetter 8th Edition Test Bank
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Statistical Procedures and Measurement in Education
EDUCATION 5313

Fall 2016
EDUC 5313 Fall 2015, Problem Set 5:
Instructions: You may print out this page and write your answers on this sheet. Do not forget to
write down your name and the time it took you to complete this assignment at the bottom of this
page.
Describe what is mea
Chapter 10: The t Test For
Two Independent Samples
(Independent samples t Test)
IndependentMeasures Designs
Allows researchers to evaluate the mean
difference between two populations using data
from two separate samples.
The identifying characteristic
5/23/16
Lecture Suggestions
Anxiety about the course: This is not a math
class! I know that no one picked Statistics as an
elective because it looked like a fun class :)
However, I will try to make it easier and more
enjoyable (less painful) than you wou
10/5/13
Chapter 8: Introduction to Hypothesis
Testing
Hypothesis Testing
A hypothesis test is a statistical method that
uses sample data to evaluate a hypothesis
about a population.
The general goal of a hypothesis test is to rule
out chance (sampling e
9/9/13
Lecture Suggestions
Anxiety about the course: This is not a math
class! I know that no one picked Statistics as an
elective because it looked like a fun class :)
However, I will try to make it easier and more
enjoyable (less painful) than you woul
10/18/13
Chapter 10: The t Test For
Two Independent Samples
IndependentMeasures Designs
Allows researchers to evaluate the mean
difference between two populations using data
from two separate samples.
The identifying characteristic of the independentme
EDUC 5313 Fall 2013, Problem Set 1:
Instructions: You may print out this page and write your answers on this sheet. Do not
forget to write down your name and the time it took you to complete this assignment at
the bottom of this page. Keep a copy for your
10/5/13
Chapter 7: The Distribution of
Sample Means
Samples and Populations
Samples provide an incomplete picture of the
population.
There are aspects of the population that may not
be included within a sample.
The sampling error is the error between a
10/11/13
Chapter 9: Introduction to
the t statistic
The t Statistic
The t statistic allows researchers to use sample
data to test hypotheses about an unknown
population mean.
The particular advantage of the t statistic is that
the t statistic does not r
9/16/13
Chapter 3: Central Tendency
Central Tendency
In general terms, central tendency is a
statistical measure that determines a single
value that accurately describes the center of the
distribution and represents the entire distribution
of scores.
Th