This document outlines three statistical assignments requiring the use of Excel and t-tests. Assignment 1 involves calculating the correlation between two variables using Excel. Assignment 2 involves performing an independent t-test using Excel to compare the means of two groups and determining if there is a significant difference. Assignment 3 requires analyzing a research article, completing a worksheet, and writing a 500-750 word essay explaining why a t-test was the appropriate statistical analysis and why another statistical tool would not be relevant. Rubrics are provided to grade each assignment.

1. These are Statistic answers needed. If this is not your specialty,
please do not respond. I will be attaching the article and
worksheet to complete assignment 3.
Assignment 1
Correlation between Two Variables
Details:
Use Excel to do a correlation between the following variables:
1) X – 2,5,5,6,6,7,8,9
2) Y – 1,2,2,3,4,4,5,5
This assignment uses a grading rubric. Instructors will be using
the rubric to grade the assignment; therefore, students should
review the rubric prior to beginning the assignment to become
familiar with the assignment criteria and expectations for
successful completion of the assignment.
Rubics to follow for assignment 1
Correlation between Two Variables
1
Unsatisfactory
0.00%
2
Less Than Satisfactory
65.00%

2. 3
Satisfactory
75.00%
4
Good
85.00%
5
Excellent
100.00%
70.0 %Content
40.0 %
Use Excel to Perform a Correlation Between Two Variables
Failure to demonstrate the ability to use Excel to perform the
correlation for the data set.
Demonstrates only minimal ability to use Excel to perform the
correlation for the data set.
Demonstrates ability to use Excel to perform the correlation for
the data set, but has some slight misunderstanding of the
process.
Demonstrates ability to use Excel to perform the correlation for
the data set.
Demonstrates clearly and fully the ability to use Excel to
perform the correlation for the data set.
30.0 %
Integration of Information from Outside Resources into the
Body of Paper
Failure to use references, examples, or explanations.
Provides some supporting examples, but minimal explanations
and no published references included.
Supports main points with examples and explanations, but fails
to include published references to support claims and ideas.
Supports main points with references, explanations, and
examples. Analysis and description is direct, competent, and
appropriate of the criteria.

3. Supports main points with references, examples, and full
explanations of how they apply. Thoughtfully analyzes,
evaluates, and describes major points of the criteria.
20.0 %Organization and Effectiveness
7.0 %
Assignment Development and Purpose
Paper lacks any discernible overall purpose or organizing claim.
Thesis and/or main claim are insufficiently developed and/or
vague; purpose is not clear.
Thesis and/or main claim are apparent and appropriate to
purpose.
Thesis and/or main claim are clear and forecast the development
of the paper. It is descriptive and reflective of the arguments
and appropriate to the purpose.
Thesis and/or main claim are comprehensive. The essence of the
paper is contained within the thesis. Thesis statement makes the
purpose of the paper clear.
8.0 %
Argument Logic and Construction
Statement of purpose is not justified by the conclusion. The
conclusion does not support the claim made. Argument is
incoherent and uses noncredible sources.
Sufficient justification of claims is lacking. Argument lacks
consistent unity. There are obvious flaws in the logic. Some
sources have questionable credibility.
Argument is orderly, but may have a few inconsistencies. The
argument presents minimal justification of claims. Argument
logically, but not thoroughly, supports the purpose. Sources
used are credible. Introduction and conclusion bracket the
thesis.
Argument shows logical progression. Techniques of
argumentation are evident. There is a smooth progression of
claims from introduction to conclusion. Most sources are

4. authoritative.
Clear and convincing argument presents a persuasive claim in a
distinctive and compelling manner. All sources are
authoritative.
5.0 %
Mechanics of Writing (includes spelling, punctuation, grammar,
language use)
Surface errors are pervasive enough that they impede
communication of meaning. Inappropriate word choice and/or
sentence construction are used.
Frequent and repetitive mechanical errors distract the reader.
Inconsistencies in language choice (register), sentence
structure, and/or word choice are present.
Some mechanical errors or typos are present, but are not overly
distracting to the reader. Correct sentence structure and
audience-appropriate language are used.
Prose is largely free of mechanical errors, although a few may
be present. A variety of sentence structures and effective
figures of speech are used.
Writer is clearly in command of standard, written, academic
English.
10.0 %Format
5.0 %
Paper Format (Use of appropriate style for the major and
assignment)
Template is not used appropriately, or documentation format is
rarely followed correctly.
Appropriate template is used, but some elements are missing or
mistaken. A lack of control with formatting is apparent.
Appropriate template is used. Formatting is correct, although
some minor errors may be present.
Appropriate template is fully used. There are virtually no errors
in formatting style.

5. All format elements are correct.
5.0 %
Research Citations (In-text citations for paraphrasing and direct
quotes, and reference page listing and formatting, as appropriate
to assignment and style)
No reference page is included. No citations are used.
Reference page is present. Citations are inconsistently used.
Reference page is included and lists sources used in the paper.
Sources are appropriately documented, although some errors
may be present
Reference page is present and fully inclusive of all cited
sources. Documentation is appropriate and citation style is
usually correct.
In-text citations and a reference page are complete and correct.
The documentation of cited sources is free of error.
100 %
Total Weightage
Assignment 2
A drug company is measuring levels of oxygenation in patients
after receiving a test medication. As the researcher, you are
interested in whether Group I, which received the medication,
has the same oxygenation levels as Group II, which did not.
1) Group 1: 2,3,3,4,4,7,8,9

6. 2) Group 2: 1,2,2,3,4,4,5,5,6,8
Use Excel to run a t-test for two samples, assuming equal
variances, with an alpha value of 0.05. Run the t-test and note:
1) Are you doing a one-tailed test or a two-tailed test (Excel
will give you both)?
2) What is the probability that Group I is different from Group
2, using the p value? Is it significant against the benchmark of p
< .05?
APA format is not required, but solid academic writing is
expected.
This assignment uses a grading rubric. Instructors will be using
the rubric to grade the assignment; therefore, students should
review the rubric prior to beginning the assignment to become
familiar with the assignment criteria and expectations for
successful completion of the assignment.

7. Rubics for assignment 2
Top of Form
t-Test for Two Samples
1
Unsatisfactory
0.00%
2
Less Than Satisfactory
65.00%
3
Satisfactory
75.00%
4
Good
85.00%
5
Excellent
100.00%
70.0 %Content
40.0 %
Performance of a t-Test for Two Samples and Answer to the
Questions on Tails and the Probability of Difference Between
the Groups
Failure to demonstrate the ability to perform a t-test for two
samples and answer the questions on tails and the probability of
difference between the groups.
Demonstrates only minimal ability to perform a t-test for two

8. samples and answer the questions on tails and the probability of
difference between the groups.
Demonstrates ability to perform a t-test for two samples and
answer the questions on tails and the probability of difference
between the groups, but has some slight misunderstanding of the
process and applications.
Demonstrates ability to perform a t-test for two samples and
answer the questions on tails and the probability of difference
between the groups (in student's own words).
Demonstrates clearly and fully the ability to perform a t-test for
two samples and answer the questions on tails and the
probability of difference between the groups (in the student's
own words). Shows ability to think critically about the choice of
the statistic.
30.0 %
Integration of Information from Outside Resources into the
Body of Paper
Failure to use references, examples, or explanations.
Provides some supporting examples, but minimal explanations
and no published references included.
Supports main points with examples and explanations, but fails
to include published references to support claims and ideas.
Supports main points with references, explanations, and
examples. Analysis and description is direct, competent, and
appropriate of the criteria.
Supports main points with references, examples, and full
explanations of how they apply. Thoughtfully analyzes,
evaluates, and describes major points of the criteria.
20.0 %Organization and Effectiveness
7.0 %
Assignment Development and Purpose
Paper lacks any discernible overall purpose or organizing claim.
Thesis and/or main claim are insufficiently developed and/or

9. vague; purpose is not clear.
Thesis and/or main claim are apparent and appropriate to
purpose.
Thesis and/or main claim are clear and forecast the development
of the paper. It is descriptive and reflective of the arguments
and appropriate to the purpose.
Thesis and/or main claim are comprehensive. The essence of the
paper is contained within the thesis. Thesis statement makes the
purpose of the paper clear.
8.0 %
Argument Logic and Construction
Statement of purpose is not justified by the conclusion. The
conclusion does not support the claim made. Argument is
incoherent and uses noncredible sources.
Sufficient justification of claims is lacking. Argument lacks
consistent unity. There are obvious flaws in the logic. Some
sources have questionable credibility.
Argument is orderly, but may have a few inconsistencies. The
argument presents minimal justification of claims. Argument
logically, but not thoroughly, supports the purpose. Sources
used are credible. Introduction and conclusion bracket the
thesis.
Argument shows logical progression. Techniques of
argumentation are evident. There is a smooth progression of
claims from introduction to conclusion. Most sources are
authoritative.
Clear and convincing argument presents a persuasive claim in a
distinctive and compelling manner. All sources are
authoritative.
5.0 %
Mechanics of Writing (includes spelling, punctuation, grammar,
language use)
Surface errors are pervasive enough that they impede
communication of meaning. Inappropriate word choice and/or

10. sentence construction are used.
Frequent and repetitive mechanical errors distract the reader.
Inconsistencies in language choice (register), sentence
structure, and/or word choice are present.
Some mechanical errors or typos are present, but are not overly
distracting to the reader. Correct sentence structure and
audience-appropriate language are used.
Prose is largely free of mechanical errors, although a few may
be present. A variety of sentence structures and effective
figures of speech are used.
Writer is clearly in command of standard, written, academic
English.
10.0 %Format
5.0 %
Paper Format (Use of appropriate style for the major and
assignment)
Template is not used appropriately, or documentation format is
rarely followed correctly.
Appropriate template is used, but some elements are missing or
mistaken. A lack of control with formatting is apparent.
Appropriate template is used. Formatting is correct, although
some minor errors may be present.
Appropriate template is fully used. There are virtually no errors
in formatting style.
All format elements are correct.
5.0 %
Research Citations (In-text citations for paraphrasing and direct
quotes, and reference page listing and formatting, as appropriate
to assignment and style)
No reference page is included. No citations are used.
Reference page is present. Citations are inconsistently used.
Reference page is included and lists sources used in the paper.
Sources are appropriately documented, although some errors

11. may be present
Reference page is present and fully inclusive of all cited
sources. Documentation is appropriate and citation style is
usually correct.
In-text citations and a reference page are complete and correct.
The documentation of cited sources is free of error.
100 %
Total Weightage
Bottom of Form
Assignment 3

12. Details:
1) Refer to "The Use of Electro-Acupuncture in Conjunction
with Exercise for the Treatment of Chronic Low-Back Pain" by
Yeung, Leung, and Chow.
2) Complete "Yeung Analysis Worksheet."
3) Examine the question the researchers were trying to answer
and write an essay (500-750 words) that explains why you feel
the t-test was chosen. Choose one of the other tools studied so
far in this course and explain why it would not provide relevant
findings.
4) Prepare this assignment according to the APA guidelines
found in the APA Style Guide, located in the Student Success
Center. An abstract is not required.
5) This assignment uses a grading rubric. Instructors will be
using the rubric to grade the assignment; therefore, students
should review the rubric prior to beginning the assignment to
become familiar with the assignment criteria and expectations
for successful completion of the assignment.