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Applied Statistics |
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Spring 2007 |
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Mr. Glen Just |
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Math 332 – 01 |
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2:00-2:50 pm MWF |
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Office S302 Ext. 2310 |
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3 sem. hrs. |
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Room S304 |
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glen.just@ashford.edu |
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Office Hours |
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Mon |
Tue |
Wed |
Thu |
Fri |
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11:00 – 11:50 |
11:00 – 11:50 1:00 – 1:50 |
11:00 - 11:50 |
11:00 – 11:50 1:00 – 1:50 |
11:00 – 11:50 |
Ashford University Mission:
The mission of Ashford University is to provide accessible, affordable, innovative, high-quality learning
opportunities and degree programs that meet the diverse needs of individuals
pursuing integrity in their lives, professions, and communities.
Course Description:
This course covers tabulation and graphing techniques, measures of central tendency, measures of dispersion, population and sample distributions, probability, central limit theorem, estimation, and parametric and non-parametric hypothesis testing. Students will use computer technology to analyze data, reach appropriate conclusions and produce statistically valid projects. Prerequisite: Successful completion of the Mathematics, Computer and Communication competencies.
Required Course Materials:
Textbook: Introductory Statistics, 7th ed., by
Neil Weiss (Addison Wesley publ), bundled with student version of Minitab
statistical program. Computer: Students must possess a laptop with MS Office
(at least Word, Excel, Power Point), e-mail, web browser, and Minitab.
Course Design:
A. Instruction: Primary
medium of instruction will be small group and class discussions. Students are
expected to read the material presented in the course text plus information
from other sources. Students are expected to understand and be able to explain
the reasoning and theories behind statistical procedures. Specific examples
are presented in the course text that demonstrate the correct usage of formulas
and statistical techniques.
B. Assignments: Three case
study problems will be assigned pertaining to the material covered in course
text. These case studies are worth 100 points each for the first two and 200
points for the third one for a total of 400 possible points. Each case study
must be completed by the specified due date in the appropriate format (see
evaluation rubric). Submitting an assignment that is not the work of the
individual student will result in a zero for the assignment. Subsequent attempts
at plagiarism or any other form of cheating will result in dismissal from the
course and possible dismissal from the college (see college catalog).
C. Computer laboratory: In
addition to the required coursework, a computer application lab will be used
for all students as part of the instruction and on an optional basis for
enrichment. A statistical program will be used to demonstrate the techniques
and concepts learned in class. The program has the capability of finding
solutions to the assigned problems and will be used by the students to generate
their answers. The individual student is responsible for spending adequate
computer time outside of the normal class/lab sessions to learn the computer
program. Student versions of the program are included in the bundle with the
course text when purchased through the university bookstore. Tutorials on
using the software are available through the Blackboard portal for this course.
Course Outcomes/Objectives: (assessments in parentheses).
A. Summarize statistical data numerically and graphically (discussions, projects).
B. Utilize probability in decision-making (discussions, projects).
C. Select and utilize appropriate parametric tests consistent with the type of data and the question to be answered (discussions, projects).
D. Select and utilize appropriate non-parametric tests consistent with the type of data and the question to be answered (discussions, projects).
E. Reach and defend conclusions using computer technology and a statistical software package (projects).
Program Level Outcomes:
Mathematics Endorsement: This course meets the Iowa Department of Education “statistics” requirement for teacher certification in elementary and secondary mathematics. Other Ashford University Programs: This course meets the collateral specified requirements of statistics in the Accounting and Professional Accounting, Business Administration degrees as well as the Liberal Arts degree with concentrations in Environment, Science, Behavior and the Social Science degree with a concentration in Human Services. Assessment of successful completion is made through the discussions and projects.
Institutional Outcomes: Graduates of Ashford University –
Attendance Policy:
Each student is expected to attend the class regularly and contribute to the learning experience for all students enrolled during class and through Blackboard discussions. Students are expected to ask questions, in class or through Blackboard, on material that they do not understand and to actively offer answers to questions posed during the class sessions and within the discussion board. There are no unexcused absences. In effect any absence is considered excused, however, students who are not in class or do not meet regularly with their team cannot participate and therefore their overall grade could suffer through their peer evaluations.
Evaluation: Course grade will be
determined by case studies and discussion questions.
A. Case study projects are
prepared by teams typically consisting of four to six students. The MLA
formatted research papers are to be submitted using Blackboard no later than
the date specified by the instructor. Late assignments will only be accepted
for full credit provided the instructor determines that a valid reason existed
for it being late. Otherwise, assignments will receive ten-percent lower
credit for each day it is late and assignments more than four days late will
not be accepted. All written answers must be in complete sentences.
Assignments that do not meet the specified requirements will not receive full
credit. There will be 3 case studies for a total of 400 points. Each case
study will be graded using three evaluation rubrics (see evaluation rubrics
below). One rubric will assess the written paper, a second will assess the in
class presentation and the third is a peer evaluation completed by the team
members. Turning in the work of another student as one's own or allowing your
assignment to be copied by another student is plagiarism and will result in a
zero for the assignment. Subsequent attempts at cheating or any kind will
result in failure in the course and possible dismissal from the college (see
college catalog).
B. Discussion questions
will be presented to the students at various times during the semester. These
questions might be presented during class, via email or on the Blackboard
discussion page. Each student is expected to thoughtfully respond to the
discussion questions and the comments of other students. The points awarded
for the discussions will be determined by a combination of the number of
postings, the depth and range of the postings, and their uniqueness. The
instructor will specify the point value of the discussion question and the minimum
postings to obtain a passing grade, e.g. at least three new postings and at
least two responses to other student postings. Students are expected to treat
the comments made by other students with respect and to use proper English when
posting their comments. If a student does not post his or her responses to the
discussion question during the time it is available, he or she can complete a 5
page MLA paper for each in-class discussion missed. The paper must be
submitted within 48 hours of discussion and must contain at least three
resources besides course text.
Grading scale: Final average will be obtained by dividing the total number of points accumulated by the student by the number 5. Any student who does not participate in the final assessment activity (final case study) will receive an automatic failure (school policy). The following grading scale will be used (the numbers corresponding to the letter grades are given in percentages):
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98 – 100 = A+ |
93 – 97 = A |
90 – 92 = A‑ |
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Case studies |
400 |
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87 – 89 = B+ |
83 – 86 = B |
80 – 82 = B‑ |
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Discussions |
100 |
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77 – 79 = C+ |
73 – 76 = C |
70 – 72 = C‑ |
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67 – 69 = D+ |
63 – 66 = D |
60 – 62 = D- |
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Total |
500 |
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Below 60 = F |
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NOTE: Current University policy does not permit the recording of A+.
Academic Integrity:
The academic community of the University believes that one of the goals of an institution of higher learning is to strengthen academic integrity and responsibility among its members. To this end the University throughout its history has emphasized the importance of sound judgment and a personal sense of responsibility in each student. All members of the academic community are expected to abide by the highest standards of academic integrity.
Academic dishonesty is a serious offense at the University because it undermines the bonds of trust and personal responsibility between and among students and faculty, weakens the credibility of the academic enterprise, and defrauds those who believe in the value and integrity of the degree. Academic dishonesty may take several forms:
Cheating: Intentionally using or attempting to use unauthorized materials, information, or study aids in any academic exercise (test, essay, etc.).
Fabrication: Intentional and unauthorized falsification or invention of any information or citation in an academic exercise.
Facilitating academic dishonesty: Intentionally or knowingly helping or attempting to help another student commit a breach of academic integrity.
Plagiarism: Representing the words or ideas of another as one’s own in any academic exercise.
A student who commits an act of academic dishonesty may face disciplinary action ranging from failure to receive credit on an academic exercise to dismissal from the University. Procedures for implementing this policy are listed in the student and faculty handbooks.
Accommodations:
In accordance with the Rehabilitation Act of 1973 and the Americans with Disabilities Act (ADA) of 1990, Ashford University prohibits discrimination on the basis of a disability. Ashford University is committed to providing an equal opportunity to access a full educational experience and reasonable accommodations will be granted to students who qualify.
Students are responsible for disclosing disability information and requesting such accommodation through the Campus Registrar, Sister Kathy Holland at 563-242-4153 x1261 or the University Registrar, Sheri Jones at 866-974-5700 x2291or e-mail registrar@ashford.edu. Documentation for the disability must be provided annually by a qualified health care professional. The determination of reasonable accommodation resides with the Office of the University Registrar.
Tentative Schedule of Classes
Notice: The topics indicated will be discussed in class on or near the dates indicated. This schedule for the topics is tentative and may be altered as necessary during the semester. The related materials must be read BEFORE the indicated class.
January
22 Introduction, Syllabus, Blackboard, 1.1 Two Kinds of Statistics
24 1.2 The Technology Center, 1.3 Simple Random Sampling,
26 1.4 Other Sampling Designs, 1.5 Experimental Design
29 2.1 Variables and Data, 2.2 Grouping Data,
31 2.3 Graphs and Charts, 2.4 Stem-and-Leaf Diagrams
February
02 2.5 Distribution Shapes, 2.6 Misleading Graphs
05 3.1 Measures of Center, 3.2 Sample Mean
07 3.3 Measure of Variation, 3.4 Five number Summary
09 3.5 Descriptive Measures, 4.1 Probability Basics
12 4.2 Events, 4.3 Rule of Probability, 4.4 Contingency Tables
14 4.5 Conditional Probability, 4.6 Multiplication Rule
16 4.7 Bayes' Rule, 4.8 Counting Rules
19 President’s Day – No Classes
21 5.1 Discrete Random Variables and Probability Distributions, 5.2 Mean and Standard Deviation
23 5.3 Binomial Distribution, 5.4 Poisson Distribution (opt. Hyper-Geometric distribution)
26 6.1 Normally Distributed Variables, 6.2 Areas Under the Standard Normal Curve
28 Presentations of case study 1
March
02 Presentations of case study 1 (continued)
05 6.3 Working with Normal Variables, 6.4 Assessing Normality
07 6.5 Normal Approximation to Binomial Distribution, 7.1 Sampling Error
09 7.2 Mean and Standard Deviation, 7.3 Sampling Distribution of the Mean
12 8.1 Estimating a Population Average, 8.2 Confidence Interval for m (known s)
14 8.3 Margin of Error, 8.4 Confidence Interval for m (unknown s)
16 9.1 Hypothesis Testing, 9.2 Terms, Errors, Hypotheses
19-23 Spring Break – No Classes
26 9.3 Test for Single Mean (known s), 9.4 Type II Error Probabilities (Power)
28 9.5 P-values, 9.6 Test for Single Mean (unknown s)
30 9.7 Wilcoxon Signed Rank Test, 9.8 Which Procedure Should Be Used?
April
02 10.1 Difference of Two Means (independent samples), 10.2 Inferences for Two Means (Independent Samples, s1 = s2)
04 10.3 Inferences for Two Means (Independent Samples, s1 ¹ s2), 10.4 Mann-Whitney Test
06 10.5 Inferences for Two Means (paired samples), 10.6 Paired Wilcoxon Signed Rank Test, 10.7 Which Procedure Should Be Used?
09 11.1 Inferences for One Population Standard Deviation, 11.2 Inferences for Two Population Standard Deviations
11 Presentations for case study 2
13 Presentations for case study 2 (continued)
16 12.1 Confidence Intervals for One Population Proportion, 12.2 Hypothesis Test for One Proportion, 12.3 Inferences for Two Proportions (independent samples)
18 13.1 Chi-Square Distribution, 13.2 Goodness of Fit
20 13.3 Contingency Tables, 13.4 Independence Test
23 14.1 Linear Equations with One Independent Variable, 14.2 Regression Equation
25 14.3 Coefficient of Determination, 14.4 Linear Correlation
27 15.1 Regression Model, 15.2 Analysis of Residuals, 15.3 Estimation and Prediction
30 15.4 Inferences in Correlation, 15.5 Tests for Normality
May
02 16.1 The F-Distribution, 16.2 One-Way ANOVA (Logic), 16.3 One-Way ANOVA (Procedure)
04 16.4 Multiple Comparisons, 16.5 Kruskal-Wallis Test
09 Presentations for case study 3 (1:00p to 3:00p)
Statistics Research Paper Rubric
Group: _____________________________________
Members: ______________________________________________________________________
________________________________________________________________________________
Criteria |
Max Pts |
Earned |
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Introduction: Overview – Topic identified Problem(s) stated |
5 |
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Content: Addressed the topic Integrated appropriate research source(s) Presented personal comments/observation/perspectives within context of topic |
15 |
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Accuracy and conclusions: Reflected correct statistical methods Summarized materials presented and made appropriate conclusion(s) |
15 |
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MLA Style: This paper must follow the current MLA guidelines: No title Page Body of Paper Internal citations Reference Page |
1 10 |
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Composition: Outstanding-10 Clear, vivid writing. Paper speaks to topic in consistent and appropriate voice, sharply focused, insightful, and persuasive, with an incisive, pleasing form. Very carefully proofed and free of mechanical errors. Very Good-8 Clear, logical writing. Vivid and persuasive. Thoughtful ideas coherently presented; well-formed paper, carefully proofed with few mechanical errors. Good-6 Simple, logical writing. Conventional in its details, thinking, and expression. Well-structured paper, proofed yet errors are evident. Poor – 4 Writing is not logical in places. Use of slang or inappropriate terminology. Numerous spelling and grammar errors. Unsatisfactory-2 Confused, unclear, wandering off topic. Fails to focus on topic. Inappropriate voice. Not adequately proofed with substantial mechanical errors. |
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10 |
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Graphics: Related directly to the material presented Clearly demonstrated relations, patterns, etc. Reflected statistical statements and conclusions presented. Color and labeling appropriate for aesthetics and clarity. |
5 5 |
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Total Points Possible
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60 |
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Group Presentation Rubric
Topic: __________________________________ Date: _____________________________
Member names: ___________________________________________________________________________
___________________________________________________________________________
Team presentations are evaluated on the following aspects including audience engagement, instructional strategies, presentation style, content, graphics, and teamwork. Each team member will be assessed individually (30 points).
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Presentation Component |
NA |
Excellent 5 Points |
Good 3 Points |
Acceptable 1 Point |
Unacceptable 0 points |
Points |
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Overview: introduction of presenters and topic |
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confident introduction of roles and contribution; clear purpose and overview |
confident and fluent introduction; clear overview, but could be more complete or polished |
introduction of presenters, but awkward – the overview was sketchy or unclear |
no introduction or overview of topic
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Handouts, visuals, graphics, references: attractive & balanced layout, legible fonts – follows the principles of design |
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well-designed handouts, following visual principles of design that simplify or summarize key ideas; contact information provided |
well designed handouts and graphics, but too much or too little, and not on key points; contact information provided |
handouts provided, graphics were present, but were poor in quality, inconsistent, and not related; inconsistent contact information |
no handout provided (this includes references), graphics and visuals were not related to topic; little or no contact information |
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Presentation style: use effective verbal and nonverbal communication skills (e.g., voice, volume, inflection, eye contact, vocabulary, etc.) |
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excellent verbal and nonverbal style, good projection with inflection, spontaneous speaking; fluent vocabulary and pronunciation without pretension |
generally good delivery and spontaneity but could improve; good use of terms but still uses jargon or is awkward with use of terms |
fluent delivery, but reading OR awkward delivery but spontaneous delivery; use of terms, but not well related, sporadic, misused or mispronounced |
poor style (long pauses, reading presentation, “Umm…” and other mannerisms, poor eye contact, monotone, etc.). |
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Coverage and accuracy: thorough and balanced in treatment of topic, team members demonstrate understanding of the material. |
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thorough coverage of topic per assignment with balanced treatment of perspectives, balanced contribution, good understanding of material. |
generally thorough and balanced, but awkward, needs more evidence, or better sequencing, clear roles, basic understanding of material. |
either thorough, but biased, or incomplete and slightly unbalanced, poor understanding of overall material.
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very incomplete, significant gaps or biased treatment of topic, unclear of implications of findings, no understanding of material. |
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Discussion: team is prepared to facilitate class discussion, stays within the established time frame, and is receptive to feedback |
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prepared questions on key areas, and responsive to and elicit participant reaction and questions, equal distribution of work.
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prepared discussion questions, reasonable distribution of workload. |
discussion but without clear organization or purpose, some disparity in work distribution |
little or no discussion, unequal distribution of work. |
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Media utilization: team exhibits fluency in the use of AV equipment and materials. |
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each team member exhibited equal and effective use of equipment and materials; attention to set up and made ready for next presentation |
equipment was used appropriately
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unequal use of equipment and materials – awkward management of equipment |
little or no use of equipment or materials |
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Total: |
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Strongly Agree (5) |
Agree (4) |
Neither (3) |
Disagree (2) |
Strongly Disagree (1) |
Description |
5 |
4 |
3 |
2 |
1 |
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1. Devoted time to project |
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2. Took the project seriously |
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3. Researched the topic |
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4. Participated in face-to-face and electronic meetings |
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5. Did quality work |
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6. Cooperated with group; was a team player |
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7. Was dependable; met group deadlines/assignments |
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8. Generated ideas |
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9. Showed initiative |
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10. Contributed to learning experience |
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11. Brought integrity to the project |
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12. Encouraged participation of all members |
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13. Treated group members with respect |
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Add number of marks in each column and multiply that number by its value. For example, 7 marks in “strongly agree” multiplied by 5 = 35. |
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Complete the calculation above for each column. Add all of the numbers from each column and write it here ________
Now divide the total by 13 and place the divided number here _______ (should be between 1 and 5 inclusively)
Points received for each team member (for this evaluation) will be divided by the number of team members. The final peer evaluation score will be doubled (max = 10) and may be different for each team member.
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Group member’s name: _____________________________________________________
Evaluator’s name: _____________________________________________________
IMPORTANT! These evaluations are due within 24 hours
after your presentation.
If you fail to submit the evaluations on time, YOUR grade will be
reduced.
Adapted from Group Personality and Performances, by S. L. Bichard, M. Roberts, and J. Sutherland.
Published in Journal of Advertising Education, Fall 2000.