Running head: INFERENTIAL RESEARCH AND STATISTICS PROJECT
Inferential Research and Statistics Project
Shanquan D. Kennedy
Psy 315
February 27, 2017
Robert Keele
1
INFERENTIAL RESEARCH AND STATISTICS PROJECT
2
Inferential Research and Statistics Project
Mo
11. List the 5 steps of hypothesis testing, and explain the procedure and logic of each.
Restate the question as a research hypothesis and null hypothesis about the
populations.
o Research hypothesis and null hypothesis are both opposites of one another.
12. Explain and give an example for each of the following types of variables: (a) equal-interval,
(b) rank-order, (c) nominal, (d) ratio scale, (e) continuous.
Equal-Interval: this is when variables are the equal amount away from the number
in question
Ra
Chapter 7 #14
14. There were 8 paid individuals for this 24-hour cycle of sleeping and waking. They
were all separated into their own rooms. After a month their cycles were 25, 27, 25, 23, 24, 25,
26, and 25.
The mean, median, and mode for this set of num
Chapter 2
11.
Mean: 2
Median: 2
Sum of Squared Deviations: 56
Variance: 56/21 which is 2.67
Standard Deviation: 1.63
12.
Mean: 1312.4
Median: 1361
Sum of Squared Deviations: 76089.2
Variance: 76089.2/5 which is 15217.84
Standard Deviation: 123.36
13.
Mean
PSYCHOLOGICAL REASONS
FOR DEPRESSION
INTRODUCTION
Psychologists have three
main goals when
doing research:
To find ways to
measure and describe
behavior
To understand why,
when, and how events
occur
To apply this
knowledge to solving
real-world problems
T
How effective are the pie charts that often accompany a newspaper article in explaining the
statistics being used in the article? Can you find an example of a pie chart?
The effectiveness of the pie charts that often accompany a newspaper article in expla
Running head: RESEARCH, STATISTICS, AND PSYCHOLOGY
Research, Statistics, and Psychology
PSY315
1
RESEARCH, STATISTICS, AND PSYCHOLOGY
2
Research, Statistics, and Psychology
Most research involves some type of practical experiment. Gathering data for whate
Week 1 DQ 1 Due Day 2 (Wednesday) 1 point
What are the differences between quantitative and qualitative data?
What are some examples of each?
*Class remember to post substantive answers to each week's discussion
question for full points. Posting under th
DESCRIPTIVE AND INFERENTIAL STATISTICS
Descriptive and Inferential Statistics
PSY315
1
Descriptive and Inferential Statistics
Descriptive statistics are used by psychologist to summarize and describe a group of
numbers from research. One descriptive stati
What is the difference between null and alternative hypotheses statements in one-tailed and
two-tailed tests? What are significance/alpha levels and how does using a one versus a two
tailed test affect significance levels?
The difference between the null
Week 3 assignments
CH. 2.
11.
A. Mean-2 (2+2+0+5+1+4+1+3+0+0+1+4+4+0+1+4+3+4+2+1+0)/21=2
B. Median -2 you sort the data and get 0 0 0 0 0 1 1 1 1 1 2 2 2 3 3 4 4 4 4 4 5 median=middle
value=11th value=2
C. Sum of squared deviations= 56 [(2-2)+ (2-2)+ (0-2
Week 4 DQ 1 Due Day 2
What is a t-Test? How is the t-Test different from what we learned last
week? What is the normal distribution and how does it relate to the t-test? What is
an example of a situation in which you would use a t Test for dependent means
Week 1 DQ 2 Due Day 5 (Saturday) 1 point
What are descriptive statistics, and how might you use descriptive statistics
in your personal life?
I am not really sure about this question but this is what I think I understand about descriptive
statistics.
Desc
Week 2 DQ 1 Due Day 2
The median home price in your area has increased in the last 10 years, how does
this differ from the mean home price in your area? How does this illustrate what
the mean and median are?
Mean is a measure of the central tendency of a
Week 4 assignment
CH. 4
13.
I. In an experiment, people are told to solve a problem by focusing on the details. Is the speed of
solving the problem different for people who get such instructions compared to the speed for
people who are given no special in
What are some terms related to hypothesis testing with which you are already familiar? What
are the five steps of hypothesis testing? Why do the null and alternative hypotheses have to
be mutually exclusive?
Some terms to which I am already familiar with
Running head: Hypothesis Testing
1
Domestic Violence in Impoverished Areas
Hypothesis Testing Paper
PSY/315
July 16th, 2015
Running head: Hypothesis Testing
2
Domestic Violence in Impoverished Areas
Researching Domestic Violence (DV) in poverty stricken a
Episode Score Report for Gailvaain
Episode 5: A Focus on Life Stages
Result
ije Stages
Conversation Score
Activity Score Breakdown
Life Stages Activity
Result for Childhood
Result for Adolesoenoe
Result for Mature Adult
Conversation Response to. Score
Hel
INFERENTIAL RESEARCH AND
STATISTICS
PSY/315
DR. DEE STRBIAK
B Y: M O L LY PA R K E R
WHAT IS PTSD?
PTSD stands for Post
Traumatic Stress
Disorder, and is
believed to be
relatively knew to
behavioral science
field.
The truth is that its
been around a lot
University of Phoenix 1
Psy/315
Inferential Research and Statistics
Oct 28, 2016
Dr. Dee Strbiak
Psy/315
By: Molly Parker
1
Inferential Research and Statistics Project
Psy/315
Hypothesis
PTSD stands for Post Traumatic Stress Disorder, and is believed to b
Week 4 Practice Worksheet
Psy/315
Nov 5, 2016
Molly Parker, Chelsey Butchard, Mandee Carter
1
1.
We agreed that a 2-Sample Ttest on the data and got the following results:
test statistic: t= -3.759.
p-value = 0.0016.
df= 16.36
This means, rada sample mean
Inferential Research and Statistics Project, Part 2
Joneta Stewart
Instructor: Jennifer Lapin
Date: 11/6/2016
INTRODUCTION
Our medical facilities are experiencing missed follow up. This paper is to determine whether
there is any difference in the missed f
Inferential Research and Statistics Project, Part 2
Joneta Stewart
Instructor: Jennifer Lapin
Date: 11/6/2016
INTRODUCTION
Our medical facilities are experiencing missed follow up. This paper is to determine whether
there is any difference in the missed f
Null Hypothesis vs.
Alternative Hypothesis
Robert Caldwell
PSY/315
June 1, 2015
Monique Cano, Jasveen Singh, Johnithan Kussart, Pamela
Dennison
Null Hypothesis
Hypothesis that is either rejected or nullified.
Null refers to the common view of
something
An
Descriptive and Inferential
Statistics
Team D
PSY / 315 Statistical Reasoning In Psychology
May 18, 2015
Functions of Statistics
Simplifies
complex facts
Comparison
Relationship between facts
Formulation and testing hypothesis
Enlarges knowledge
Indicates
Null Hypothesis vs.
Alternative Hypothesis
Robert Caldwell
PSY/315
June 1, 2015
Monique Cano, Jasveen Singh, Johnithan Kussart, Pamela
Dennison
Null Hypothesis
Hypothesis that is either rejected or nullified.
Null refers to the common view of
something
An
1
Week 2 Practice Quiz
Name: Johnithan Kussart
1.
Dented
No defect
Unsealed
Dented
No defect
Dented
A.
Date: 5-15-2015
No defect
Torn
Dented
No defect
No defect
Unsealed
No defect
Crushed
No defect
No defect
Dented
No defect
Dented
No defect
No defect
Den
Practice Problems
Week 4 -Hypothesis Testing
Name _Johnithan Kussart_ Date _6/8/2015_
1. The Myers Summer Casual Store tells its customers that a special order will take six
weeks (42 days). During the recent months, the owner has received several complai