DSCI 2710-001 Fall – 2013
TuTh 9:30 – 10:50 AM: Classroom: BLB 080
INSTRUCTOR: J.L. Dake, Ph. D.
OFFICE:
BLB 358 D
OFFICE PHONE:
E-MAIL: dakej@unt.edu
940-369-7218
OFFICE HOURS: TTH 2:00 – 3:00 p.m.; MW 9:00 – 10:00 a.m. : Other hours by
appointment. Feel free to come by - I’m usually around.
REQUIRED BOOKS
1. Business Statistics: Analytics for Decision Making by Kvanli/Pavur/Keeling
Comment: The hard copy of this text will be used along with the electronic version available
on Blackboard. The hard copy is packaged with the access code. You cannot purchase the
access code separately. To access the electronic version with its supporting materials, you
will need to login to your section’s Blackboard website and then provide the access code that
appears inside the front cover of your textbook upon your initial use of the electronic
textbook material. After completing all the assigned homework for each chapter, you will
take the chapter’s post-test in Blackboard, testing you over the assigned homework exercises
of that chapter. These post-tests will be part of your final grade.
Do not purchase a used version of the textbook since you will be
unable to take the post-tests as the access codes are designed for
one-semester use in this course by each student and are not
transferable.
IMPORTANT: If for any reason, you end up re-taking this course during another
semester, this code will no longer be usable and you will need to purchase another code.
Essentially, you are purchasing the rights to the Cengage material in Blackboard for one
semester. Keep this in mind if you are deciding whether to drop the course. If you are
retaking DSCI 2710 this semester, send an email to Dakej@unt.edu and I will give
you another textbook option. Be sure to tell me when you last took the course and
the instructor’s name.
However, once you complete DSCI 2710, you will have access to the course materials in
DSCI 3710 and will not be required to purchase a separate code in that course.
2. Technology
Blackboard Learn is being used for this course. This web site is located at
learn.unt.edu; Click on “First Look” to view the requirements of the course.
1
3. Business Statistics:Hawkes Learning, by James S. Hawkes of Hawkes Learning.
Notes: (1) This software is required to complete the assignments that are equivalent to a
substantial part of your grade. (2) You can download this software by following the steps in
Getting Started #2 (see bottom of this page). Note – this software is good for both DSCI 2710
and DSCI 3710 – you do not need to repurchase this software. Keep you Access Code!
To actually run the software at home or in one of the COB labs, you must purchase an
access code. For those of you with a Visa or MasterCard, follow Option 1.
If you don=t have such a card, follow Option 2.
Option 1: Go to http://www.hawkeslearning.com and select Get your Access Code.
Then click on the button under Purchase your Access Code.
Select Business Statistics in the Hawkes Learning System Title box.
Then click on Next. Fill in the credit card information form.
Option 2: Purchase the box containing this software in the UNT Bookstore or
wherever this software is sold on campus. Inside the box is a software
license number that is necessary in Step 4 (below). Obtain your access code
by using Step 3.
4.
Obtaining your Hawkes code: Log on to www.hawkeslearning.com and select Get your
Access Code. Then click on the button under Get your Access Code. Be sure to select
University of North Texas – Denton as the School. Then click on Submit. If there is a 15
minute delay in receiving your code, contact Hawkes Learning at 800-426-9538 and they will |
be happy to assist you. Be sure to enter your name exactly as the registrar at UNT has
your name (e.g., no nicknames or newly-married names).
The course ID is UNTBSTAT.
IMPORTANT: For more information on Hawkes and other useful DSCI 2710 information,
go to the DSCI 2710 website and click on Getting Started (see below).
The DSCI 2710 website is:
www.cob.unt.edu/itds/courses/dsci2710
2
After clicking on Getting Started, you will see the following seven PowerPoint files.
Take a look at these seven files (in order) to get off to a smooth start in this course.
This site also contains:
$ Course syllabus for each section
$ Excel data sets used in the Excel assignments
$ Link for registering Hawkes Learning modules [HLS Registration & Help]
$ Link for all the homework assignments [2710-Homework] - see page 16 in this syllabus.
EXTRA CREDIT
You can work all of the following five Hawkes modules for extra credit (5 points each). They must
be completed by the due date to obtain full credit.
(1) Measures of Dispersion (Variation) (Module 3.2a).
(2) Classical Probability (Module 4.1).
(3) Counting Rules (Module 4.3).
(4) Find the Value of t (Module 6.5).
(5) Estimating Means: Sigma Known (Module 8.3).
Due 09/15
Due 10/13
Due 10/31
Due 11/17
Due 11/24
GOALS: At the end of the course, you should:
1. have an increased appreciation for the use of statistics in business decision making,
2. be better able to select the appropriate statistical tool/methodology to aid in business
decision making,
3. be able to use a computer spreadsheet program such as Excel to describe and analyze
numerical data,
4. be better able to communicate in the language of applied business statistics,
5. have acquired a more positive attitude towards business statistics,
6. be able to manipulate simple statistical formulae to solve non-verbal (numerical )
problems,
7. have an enhanced ability to follow instructions and observe your world statistically
3
TEACHING METHOD
1. You are encouraged to pay attention to commercials and news items in printed as well as
audio-visual media to become aware of the wide use of statistics in our daily lives. To better
assist you in understanding the use of these methodologies in business; many of the class
problems will be presented as simple business cases.
2. You should work all the homework exercises assigned during the course since the post-test
questions refer to these assigned exercises. In addition to the problems in the textbook, the
Hawkes Learning modules are intended to assist you in better structuring the learning time you
spend on practice problems.
EVALUATION
To demonstrate your ability to use quantitative techniques in business, you will answer exam
questions based on short cases. Rather than being purely numerical, problems will be presented in
word format. In addition, you will work on Excel case studies that require you to use an Excel
spreadsheet program to analyze and describe real-world business data. By simulating real business
problems and requiring you to communicate in writing, using the language of statistics, these
evaluation instruments will reinforce the course objectives.
General Comments:
1. Doing the assignments is essential to succeeding in this course. You are encouraged
to keep up with the homework problems and check the answers to the odd-numbered
exercises provided in the back of the textbook. These answers are also available in
Blackboard by clicking on Course Chapters > Resources > Textbook Appendix B.
NOTE
2. You have the final responsibility for seeing that you properly withdraw before the scheduled
last drop day. Anyone who stops attending class should execute the drop procedure since
failure to do so may result in a grade of “F” which cannot be changed.**************
3. You are requested not to phone or email the ITDS department or the instructor for your final
grade in the course. Course grades are available electronically in the week following
final-exam week.
The PowerPoint Lectures
1. PowerPoint Lectures are available for your use and are coordinated with the textbook –
these are Dr. Kvanli’s and not mine. These lecture slides are narrated and animated. Be
sure to use the Slide Show feature in PowerPoint and have your computer sound turned on.
4
2. The PowerPoint lecture for each chapter is available inside Blackboard Course Content
For example, here is the lecture file for Chapter 1.
Find PowerPoint sub‐
directory under Course Content DSCI 2710 Course Specific Policies
1.
Homework: Homework will be assigned (see pages 14 & 16) and should be completed when
due. Completing the homework is critical to learning the material and completing the
exams on time. You are expected to read and understand the relevant sections of the
textbook. Statistics is not a “Spectator Sport”.
NOTES: (1) Part of your grade will consist of the nine chapter post-tests.
To take a post-test, while in Blackboard, click on Post-Tests (inside Course
Content) and then click on the post-test you wish to take.
For more information, see Getting Started #3 (slides 5 – 8).
(2) The post-test questions are taken directly from the homework.
Since the post-tests are timed, you must complete the homework
assignment before taking the post-test.
.
2. Excel Assignments: Five exercises (see pages 12, 13 and 14) using Excel will be
assigned. There will be quizzes on these Exercises to establish your point score. They will be
demonstrated in class prior to your completing the assignment.
3. Tutorial Exercises: 15 tutorial exercises (+5 Bonus exercises) (see page 14) using the Hawkes
Learning modules will be assigned. These are an important part of the course grade. The modules
will be registered online upon completion. It is good to print a copy of the Certification for the file.
5
4. Exams: There will be three exams plus a comprehensive final exam.
All exams will be closed book. For each exam, bring a Memory Enhancement Document =
MED - 8 ½ x 11- use both sides, any tables that apply, a photo ID and your Student ID
number. Old practice exams are posted on the S Drive (in COB) in the Dake Folder. You
should bring these MED’s to each exam; along with the necessary stat tables.
Point Allocation:
Exam #1
Exam #2
Exam #3
(Low exam of #1, #2, #3 will be dropped)
Final exam (cumulative)
Online post-tests
Tutorials (Hawkes Learning)
Excel assignment quizzes
TOTAL
200
200
200
-200
200
100 (*)
75 (5 points each)
25 (5 points each)
800
(*) The post-test points consist of the percentage of all answers correct, factoring in the late-quiz
penalties. For example, if your correct-answer total (after late-quiz penalties) is 85 questions correct
out of 100 questions asked, your post-test points are 85.
5. Grade Assignment:
≥ 90% = A ≥ 720 points
≥ 80% = B ≥ 640 points
≥ 70% = C ≥ 560 points
≥ 60% = D ≥ 480 points
Below 60% = F < 480 points
6. A Statistics Lab. is available on campus for students seeking help. Hours will be posted on the
DSCI 2710 website & announced in class. The purpose of the lab is to assist students to overcome
difficulties they may encounter in attempting statistics problems.
The lab is located in BLB 131.
Comments regarding the stat lab
1. The statistics lab is not available to aid students in taking post-test or Excel quizzes.
2. (IMPORTANT) The stat lab is especially busy right before exams. There is not enough staff
to handle a surge of students and so you may not get the help you need. It is much better to
visit the stat lab as homework questions come up and not wait until the last minute.
6
DEPARTMENT & COLLEGE POLICIES
1. If you wish to register a complaint, you should first discuss your complaint with me.
To further pursue your complaint contact Dr. Al Kvanli (course coordinator) and you can also:
contact Dr. Mary Jones; ITDS Department Chair.
2. As a general rule NO MAKE-UP EXAMS will be given.
3. The University policy on Code of Conduct and Ethics is contained in the Student Guide
book. You are responsible for knowing the information contained in this and all other
official University publications.
4. Students with Disabilities: The College of Business Administration complies with the
Americans with Disabilities Act in making reasonable accommodations for qualified
students with disability. If you have an established disability as defined in the "Act" and
would like to request accommodation, please see me as soon as possible.
5. Dates of drop deadlines, exams, final exams, etc., are published in the university catalog
and schedule of classes. Please be sure you keep informed about these dates.
6. A grade of "I" will not be assigned except in rare circumstances. If you think you will
not be able to complete the class satisfactorily, please drop the course. An “I” grade cannot
be used to substitute your poor performance in class.
7. If a student is caught cheating, he or she will be immediately removed from the class with a
"WF" grade. To be reinstated, the student must provide substantial evidence to the contrary
in a hearing held in the Dean of Students Office, University of North Texas.
7
DSCI 2710 – 001: SYLLABUS: Fall - 2013
The syllabus below is an outline for planning your time to meet study needs; to be
prepared for Exams, complete the Hawkes Modules & Excel Quizzes.
Week 1
Aug. 29
Topics
Sections in Text
Introduction to Statistics
Frequency Distributions
Hawkes: Obtain access code
Chap. 1.1 thru 1.6
Chap. 2.1
Week 2
Sept. 03
Descriptive Graphs
Chap. 2.2 thru 2.6
Sept. 05
Descriptive Measures
Chap. 3.1 thru 3.6
Week 3
Sept. 10
Descriptive Measures cont.
Sept. 12
Trend & Seasonal Variation
Week 4
Sept. 17
Index Numbers-CPI
Sept. 19
REVIEW
Chap. 4.1 thru 4.9
Chap. 4.10
Week 5
Sept. 24
** Exam #1 ** Descriptive Statistics and Time Series Ch. 1-4
Sept. 26
Probability Concepts
Chap. 5.1 thru 5.4
Week 6
Oct. 01
Discrete Prob. Distribution
Chap. 6.1 thru 6.2
Oct. 03
Week 7
Oct. 08
Oct. 10
Binomial Distribution
Chap. 6.3
Poisson Distribution
Chap. 6.4
REVIEW
8
Week 8
Oct. 15
*** Exam #2 *** Chapters 5 and 6
Oct. 17
Continuous Prob. Dist.
Chap. 7.1 thru 7.4
Week 9
Oct. 22
Continuous Prob. Dist.
Chap. 7.1 thru 7.4
Oct. 24
The Normal Curve
Chap. 7.5 thru 7.7
Week 10
Oct. 29
Inference & Sampling
Chap. 8.1 & 8.2
Oct. 31
Week 11
Nov. 05
Nov. 07
Week 12
Nov 12
Nov. 14
Confidence Intervals:
For the mean (σ known)
For the mean (σ unknown)
Chap. 8.3
Chap. 8.4
Determining Sample Size
Chap. 8.5
REVIEW
*** Exam #3 ***
-- Chapters 7 and 8
Quality Improvement
Control Charts
Chap. 9.1 thru 9.4
Chap. 9.5
Control Charts for Variables
Control Chart Patterns
Chap. 9.6
Nov. 21
Control Charts for Attributes
Chap. 9.7
Week 14
Nov. 26
Process Capability
Chap. 9.8
Week 13
Nov. 19
Nov. 29 – Dec. 1 *********THANKSGIVING**********
9
Week 15
Dec. 03
REVIEW for Final
Dec. 05
REVIEW for Final
No Hawkes Modules or End of Chapter Quizzes
Will be accepted after Dec. 9, 2013 @ 11:59 pm CT.
Week 16
Dec. 12
**********FINAL***************
8:00 AM: THURSDAY
In this Classroom BLB 080
10
Taking Excel Quizzes
Be sure to go through the PowerPoint slides in Getting Started #6 (see page 3 in this syllabus).
•
•
At the times designated to complete the Excel assignment; you need to take the Excel quiz
through Blackboard
You cannot take the Excel quiz before or after the designated period.
Click on the quiz you wish to The Excel quizzes are here
Notes
(1) These quizzes will not open until the scheduled time in the syllabus.
Once you click on the Begin button, the clock is running for the assigned time allotted for
the quiz. Therefore, get everything you need (e.g., hard copy of the Excel spreadsheets,
calculator, textbook) BEFORE opening the quiz.
(2) The designated period to take the Excel quiz is stated in the syllabus.
11
Excel assignments
Excel #1 --- Due Sept. 12
Retrieve the data for exercise # 3.78 (page 97) using data set EX3-78.xls.
Ignore the questions in the exercise and answer the following questions:
a. Produce two histograms, using the travel expenses for the Marketing Department
and the travel expenses for the R&D Department.
b. Do you agree with the statement that: “The travel expenses for the Marketing
Department rarely exceed $10,000? Why or why not.
c. Determine the descriptive statistics using Excel's
Data > Data Analysis > Descriptive Statistics
d. Give a reason why the distribution is skewed (if it is) and in which direction.
Be sure to use the Pearson measure of skewness, not the Excel measure of
skewness.
Excel #2 --- Due Sept. 26
Retrieve the data for exercise # 4.50 (page 151) using data set EX4-50.xls.
Ignore the questions in the textbook and answer the following questions:
a. Using the Excel macros; what are the seasonal indexes and trend line?
b. What are the cyclical components for the year 2008?
c. What do you observe in the data?
Excel #3 --- Due Oct. 10
Use the binomial function to answer the following questions (there is no data set
here): Suppose a shipment of 410 components contains 70 defective and
340 non-defective computer components. From the shipment you take a random
sample of 20.When sampling with replacement (binomial), determine the
probability of obtaining:
a. Exactly two defective components in the sample of 20.
b. Four or more defective components in the sample of 20.
c. Four or less defective components in the sample of 20.
d. Between one and four (inclusive) defective components.
e. More than three defective components.
f. What are the mean and variance of this discrete random variable?
(continued on next page)
12
Enter 0 through 20 in column A and construct the entire distribution in column B using
Excel’s BINOM.DIST function (explained on pages 233 and 234 in the textbook).
X
0
1
2
.
.
.
20
P(x)
0.xxxx
0.xxxx
0.xxxx
0.xxxx
1.0000
Excel #4 --- Due Nov. 05
Retrieve the data for exercise # 8.20 (page 311) using data set EX8-20.xls.
a. Answer part (a) in Exercise 8.20 on page 311. Ignore the discussion regarding
SPSS and MINITAB. In part (a) it is assumed from past experience that the
population standard deviation is known and is equal to $11.60.
b. Referring to part (a), what is the 80% Confidence Interval for the mean fee
charged?
c. Suppose in part (a) that the population standard deviation is not known
Now calculate the 95% confidence interval for the mean fee charged?
Excel #5 --- Due Nov. 27
Using data set EX9-29.xls (discussed in Exercise 9.29, page 362), construct the Xbar
chart and R chart. Also, look for patterns in the Xbar chart. Does the process appear to
be in control?
13
DUE DATES
Hawkes Learning Systems: Business Statistics
**Modules Receive Half Credit if Late**
Module
1
1.2
2
3.1
3
3.3
Bonus 3.2a
4
5.1
5
5.2
Bonus 4.1
Bonus 4.3
6
5.3
7
6.2
8
6.4
9
6.3
10
7.3
Bonus 8.3
11
8.4
Bonus 6.5
12
13.1
13
13.4
14
13.2
15
13.3
Module Name
Level of Measurement
Measures of Center
Constructing Samples
Measures of Dispersion
Discrete Random Variables
Binomial Word Problems
Classical Probability
Counting Rules
The Poisson Distribution
Reading a Normal Curve Table
Finding the Value of Z
The Normal Distribution
Sampling Distribution (Means)
Estimation of Means: Sigma Known
Estimation (Means) Sigma Unknown
Find the Value of t
R Charts
Mean Charts using Range
p Charts
c Charts
Due Date
09/06
09/08
09/15
09/15
10/06
10/06
10/13
10/31
10/13
10/27
10/27
11/03
11/03
11/17
11/10
11/24
12/01
12/01
12/08
12/08
EXCEL ASSIGNMENTS
ONLINE POST-TESTS
Assignment #
Chapter #
1
2
3
4
5
Due Date
09/12
09/26
10/10
11/05
11/27
1
2
3
4
5
6
7
8
9
Excel Quizzes are taken on line
using your Blackboard Learn to
receive credit for your Excel
Exercises; by the dates specified
above. The dates shown above are
the ending dates
14
Suggested Due Date
09/08
09/08
09/15
09/29
10/06
10/13
10/27
11/10
11/27
Please complete End of Chapter
Post Tests ASAP. These are
available on Blackboard Learn
NOTES
● The last nine slides in Getting Started #2 (see page 3 in the syllabus) discuss how to complete the
Hawkes modules.
Note: If you have an internet connection while completing a module, the Hawkes Learning
system should automatically register your module when you successfully complete the
CERTIFY phase. Print a copy of your Certification.
● After getting a module certified, you should check your Hawkes Progress Report.
● Late certification is accepted but at a 50% penalty.
● No late Hawkes assignments or post-tests will be counted after December 09,
2013 @ 11:59 pm CT.
Remember: The course ID is UNTBSTAT.
See www.hawkeslearning.com or phone HLS at 800-426-9538 for help
15
Assigned Homework DSCI 2710
Prior to the due date, complete the homework problems assigned below. Then log in to Blackboard
Learn and complete the chapter post-test located under the “Homework Post Test” button. The post
test questions ask about the assigned problems. For instance, the Post Test might ask what was the
solution to question 2? The post tests are timed, so be sure you have completed all of the assigned
work before beginning the post test and be sure you have all of the solution material in front of you.
The first time you take the post-test, your score will be counted so be sure you are ready when you
begin.
Chapter 1
Exercises: 1.1 through 1.5, 1.21, 1.25
Chapter 2
Exercises: 2.1, 2.2, 2.5, 2.8 (a,b,c), 2.10 (a,b,c,d), 2.11 (a,b,c,d), 2.14, 2.15,
2.20 (uses a data set), 2.22 (uses a data set), 2.27, 2.29, 2.31, 2.32
Chapter 3
Exercises: 3.1, 3.3, 3.4, 3.6, 3.8 (uses a data set), 3.9 (uses a data set), 3.13, 3.15, 3.16, 3.18, 3.24,
3.25, 3.27 (a,b,c,d), 3.28, 3.31 (uses a data set), 3.34, 3.37, 3.38, 3.41, 3.42, 3.44 (uses a data set)
Chapter 4
Exercises: 4.2, 4.4, 4.5, 4.7, 4.12, 4.15 (uses a data set), 4.17, 4.19, 4.21, 4.24, 4.29, 4.30, 4.34 (uses
a data set), 4.35, 4.36, 4.39, 4.40, 4.49 (uses a data set), 4.50 (uses a data set), 4.63, 4.64, 4.65, 4.67,
4.68, 4.71
Chapter 5
Exercises: 5.1, 5.2, 5.7, 5.8, 5.9, 5.11, 5.12, 5.13, 5.16, 5.18, 5.22, 5.25, 5.28, 5.29, 5.31
Chapter 6
Exercises: 6.1, 6.3, 6.4, 6.6, 6.7, 6.9, 6.11, 6.12, 6.15, 6.20 through 6.24, 6.26, 6.27, 6.30, 6.31, 6.34
through 6.37, 6.39, 6.41, 6.42, 6.45, 6.46, 6.49, 6.50, 6.53
Chapter 7
Exercises: 7.1 through 7.8, 7.11 through 7.18, 7.22
Chapter 8
Exercises: 8.1, 8.2, 8.3, 8.5, 8.6, 8.7, 8.10 through 8.18, 8.22, 8.23, 8.25, 8.26, 8.27, 8.28, 8.30,
8.34, 8.35, 8.37, 8.39, 8.40, 8.41
Chapter 9
Exercises: 9.2 through 9.7, [Chapter 2: 2.34], 9.9, 9.11, 9.15, 9.21, 9.22 (a,b), 9.26, 9.29 (uses a data
set), 9.30 (uses a data set), 9.33 through 9.40
16