STA 2023 - Online
STATISTICS FOR BUSINESS & ECONOMICS
Summer B 2013
Instructor:
Wensong Wu
Office: DM 410C
Office phone: (305) 348-1812
Office hour: By appointment.
Email: Wensong.wu@fiu.edu
Text: STATISTICS for Business and Economics, McClave, Benson, and Sincich; customized FIU soft
cover version; 11th edition.
Course management system:
MyLab is an online course management system, which includes the e-book, homework, notes and
announcements. An access code to MyLab is required. See the last page of this syllabus for
instructions on registering for MyLab.
Choose one of the two options below to obtain an access code:
1. Buy the hard copy custom edition of the textbook bundled with and access code to MyLab
from FIU bookstore. Choose this option only if you want a hard copy of the textbook.
2. Buy only the access code to MyLab from www.pearsonmylabandmastering.com. An e-book
is included in the online course management system.
Coverage:
Chapter 1 – sections 1,2,3,5,6,7
Chapter 2 – sections 1,2,3,4,5,6,7,11
Chapter 3 – sections 1,2,3,4,5,6,7
Chapter 4 – sections 1,2,3,4
Chapter 5 – sections 1,2
Chapter 6 – sections 1,2,3
Chapter 7 – sections 1,2,3,4
Chapter 8 – sections 1,2,3,4,5,6
Chapter 9* – sections 1,2,4 (*as time permits)
Topics:
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Statistics as a science: Definition. Basic statistical terminology. Populations and samples. Types of
data. The role of statistics in managerial decision making.
Descriptive Statistics: Statistical tables and graphs. Measures of central tendency. Measures of
variability. Interpreting the standard deviation. Measures of relative standing.
Probability: Role of probability in statistics. Experiments and experimental outcomes. Sample
space, union, intersections, and complements of events. Mutually exclusive events, independent
events, and conditional probability. Additive and multiplicative rules. Random sampling.
Discrete Random Variables: Probability Distributions for discrete random variables, Binomial
distribution, mean, variance, use of binomial formula and probability tables.
Continuous Random Variables: Normal distribution, standard normal distribution. Tabulated areas
under the standard normal curve. Applications.
Sampling Distributions: Parameters and sample statistics. Properties of Sampling Distributions –
Unbiasedness and Minimum Variance. Sampling distribution of sample mean. Central Limit
Theorem.
Inferences Based on a Single Sample: Estimation with Confidence Intervals: Identifying and
Estimating the Target Parameter. Confidence Interval for a Population Mean: Normal (z) Statistic.
Confidence Interval for a Population Mean: Student’s t-Statistic. Large-sample Confidence Interval for
a Population Proportion.
Inferences Based on a Single Sample: Tests of Hypothesis: The Elements of a test of hypothesis.
Formulating Hypotheses and Setting up the Rejection Region. Tests of Hypotheses about a Population
Mean: Normal (z) Statistic. Observed Significance Levels. Tests of Hypotheses about a Population
Mean: Student’s t-Statistic. Large-sample Tests of Hypotheses about a population proportion.
9. Inferences Based on Two Samples: Confidence Intervals and Tests of Hypotheses. Identifying the
Target Parameter. Comparing Two Population Means: Independent Sampling. Comparing Two
Population Proportions: Independent Sampling.
Calculator: Each student will need a scientific calculator. Cell phone calculators are not permitted
for use on exams.
Grading: Homework
Activities
Attendances
Test 1
Test 2
Test 3
Final Exam
Total
100
40
10
50
50
50
100
400
points (25%)
points (10%)
points (2.5%)
points (12.5%)
points (12.5%)
points (12.5%)
points (25%)
points (100%)
A = 360 – 400 (90%-100%)
B = 320 – 359 (80%-89.9%)
C = 280 – 319 (70%-79.9%)
D = 240 – 279 (60%-69.9%)
F = 0 – 239 (0%-59.9%)
Homework: There will be 11 homework assignments, 10 points each, but only the best 10 scores
will be counted, with the lowest dropped. Most of the homework assignments will be assigned on
MyLab, but occasionally there will other type of assignments. Students may discuss the homework
problems with each other but each student should submit their answers individually. No late
homework is accepted unless extreme circumstances.
Activities: There will be 4 in-class/out-of–class activities, 10 points each.
Attendance: You are expected to attend all classes and to arrive on time. If you miss a class, you
are responsible for all material and announcements covered in class on that day. Attendance may
be taken in the form of quizzes, which will occur either at the beginning or the end of lectures. 10
points will be distributed throughout the semester.
Tests and the Final Exam: There will be 3 in-class midterm tests, 50 points each, and a
comprehensive Final exam, worth 100 points. Midterm tests will be cumulative with more
emphasis on the most recent materials. Make-up exams will be considered only in extreme
circumstances and documentation will be required. Also, you must notify me prior to the exam
or the day of the exam if you think your situation merits a make-up. If you miss an exam for a
valid reason but do not notify me of your situation in a timely manner (prior to or the day of the
exam), then you will receive a zero on the exam. Individual work is required on exams.
Dates of Tests:
Test 1: 5/16, Wednesday
Test 2: 5/31, Thursday
Test 3: 6/13, Wednesday
Final Exam: 6/21, Thursday
Other important dates:
5/14: Last day to add/drop courses
5/15: Last day to pay tuition
5/18: Last day to withdraw with 25%
refund
5/28: Memorial Day holiday, no classes 
5/30: Last day to drop with a WI grade
6/20: Last day of lectures
All students should respect the right of others to have an equitable opportunity to learn and honestly demonstrate the
quality of their learning. Therefore, all students are expected to adhere to a standard of academic conduct, which
demonstrates respect for themselves, their fellow students, and the educational mission of the University. All
students are deemed by the University to understand that if they are found responsible for academic misconduct,
they will be subject to the Academic Misconduct procedures and sanctions, as outlined in the Student Handbook.
How you enroll MyLab
To enroll in the course, a student needs to have a:
 Student access code, or a valid credit card, or a PayPal account– Students get an access code with
a new book purchase or by buying the code separately in a student access kit/card at the FIU
bookstore. Students can also buy access to a course online with a credit card or PayPal account while
they are enrolling.
 Course ID – wu91547
 Email address - The student's registration and enrollment confirmation will be sent to this email
address. This address is also available to the instructor, for course-based communications.
To use a student access code:
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Go to the www.pearsonmylabandmastering.com and click Student in the Register area.
Enter the course ID provided by your instructor and click Continue.
After verifying your course information, enter your username and password, and click Sign In.
If you don’t have a Pearson account, click the Create an account.
Complete the Create an Account page. Helpful hints appear to guide you.
Read and accept the license agreement.
Optionally, you can select the check box to help us make our products better and learn about new
offers.
8. Click Create Account.
9. Click Access Code and enter your six-word access code in the boxes.
10. Click Finish to complete your registration.
11. Click Go to Your Course to access your online course.
To purchase course access online:
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Go to the www.pearsonmylabandmastering.com and click Student in the Register area.
Enter the Course ID provided by your instructor and click Continue.
After verifying your course information, enter your username and password, and click Sign In.
If you don’t have a Pearson account, click Create an account.
Complete the Create an Account page. Helpful hints appear to guide you.
Read and accept the license agreement.
Optionally, you can select the check box to help us make our products better and learn about new offers.
Click Create Account.
Select the button for the access level you want.
Select whether you want to pay with a credit card or use PayPal and enter payment information.
Click Review to review your order details. If you need to change anything, click the Change link.
Click Make Payment to submit your order.
Click Go to Your Course to access your online course.
To request temporary access (ONLY if you have to)
If a student is waiting for financial aid, 17 days of temporary course access without payment may be available.
1. Go to the www.pearsonmylabandmastering.com and click Student in the Register area.
2. Enter the Course ID provided by your instructor and click Continue.
3. After verifying your course information, enter your username and password, and click Sign In.
4. If you don’t have a Pearson account, click Create an account.
5. Complete the Create an Account page. Helpful hints appear to guide you.
6. Read and accept the license agreement.
7. Optionally, you can select the check box to help us make our products better and learn about new
offers.
8. Click Create Account.
9. To get temporary access to your course, click the link at the bottom of the page.
10. When a confirmation message appears, click Yes to complete your registration.
11. You will receive a confirmation email with payment instructions. Click Go to Your Course to access your
course.
STA 2023
Homework 1 - Survey and Card Games
In addition to the first two questions in online homework 1 at MyLab, please hand in or email me
as soon as possible at Wensong.wu@fiu.edu your answers to the following questions. This is
worth 8 points toward homework 1. You will receive credits when I receive your hard copy or
email after you enroll on MyLab. Please make the subject of your email "STA 2023". These
answers will contribute to the datasets that will be used in class without indicating your name.
Your personal information will be safe with me. If you are not willing to give out these
information, please still email me indicating that in order to receive credits. Thank you!
1. In class we made an experiment to simulate a situation where 35 people are promoted in a
company of equally performed 24 females and 24 males. Now, find a set of cards with 24 red
card representing females and 24 black cards representing males, shuffle it well, and deal out 35
cards from it. Record the number of red cards among these 35 cards, indicating the number of
females promoted. Repeat the same process again. Report two numbers of red cards only.
2. Your gender.
3. You age.
4. Your height in inches.
5. Your shoe size.
6. How long did it take you to commute to school today, in minutes?
7. How many toppings of the pizza that you ordered the most often?
8. If you have a facebook account, how many changes of status did you make in the past week?
If you do not have a facebook account, please respond N/A.
9. How much did you spend on an article of clothing for yourself last time?
10. What letter grade do you expect to get from this course, A, B, C, or D? (Let’s see if you can
make it!)