BUS 220 – Elementary Statistics

Orientation

Sophea Chea, Ph.D.

About instructor About the course Why the course? Responsibilities of instructor and students How to fail the course About you

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Sophea Chea (schea1@dccc.edu) Lecturer of BCIS, Delaware Valley College Assistant Professor, University of Maryland UC Instructor, Delaware County Community College Visiting Assisting Professor, Temple University Assistant Professor, Bloomsburg University Instructor of MIS and Statistics, University of Hawaii

(UH) West Oahu Research Associate and instructor at UH Manoa Marketing Operations Supervisor at Shell Oil Cambodia

(1998-1999) Ph.D. in CIS from UH Manoa MBA from Asian Institute of Technology, Bangkok Bachelor of Science in EE from Cambodian Institute of

Technology

Mean of contacting instructor: email, I check it once per day

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Teaching Philosophy

Total Quality Learning = P3

1. Preparation – Read text and PPT

2. Participation – Come to class, be alert, pay attention, and complete In-Class Exercises

3. Practice – Complete Homework and Projects by the due date

Seek help as soon as possible!

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About You

Please let me know: What do I need to know about you to help you

get the most out of this course? What do you expected from this course? What are your concerns?

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About the Course

BUS220 – Elementary Statistics Credits: 3 Course Website:

http://www.sophea.info/portal/Teaching/BUS220/tabid/59/Default.aspx

Prerequisite: MAT 100 or above; a working knowledge of the algebra used to manipulate & solve equations is essential.

Instructional method: weekly class meeting T (6:35 – 9:35)

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About the Course… Grading Criteria:

Homework (Top 10) 15 Three Exams 65 Class Participation and in-class exercises 10 Quizzes 10

Total 100 Grade guideline:

Refinements will be made as necessary

Average % Letter Grade90% or higher A80% - 89% B70% - 79% C60% - 69% D60% or less F

Professionalism Be on time, be courteous and respect others No cell phone, no food No disruptive behaviors If final grade is borderline between two letter

grades professionalism will help Academic Integrity

First offense – zero for the grade in question Second offense – Fail grade for the course

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About the Course…

Required Textbook Lind, Marchal, & Wathen. (2008.) Statistical Technique for Business & Economics

with Student CD, DCCC Special (13th) Edition,

ISBN 978-0-07-303023-4

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About the Course… Take the time to read the syllabus. For each chapter:

Read the assigned chapter Attend the weekly class meeting, pay attention, and

prepare to ask questions. Complete Homework assignment as soon as it is

assigned. Turn in assignment by the deadline.

Don’t forget to sign in for each class

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Why the course?

Numerical information is everywhere Statistical techniques are used to make decisions

that affect our daily lives No matter what your career is, you will make

professional decisions that involve data It is a required course

Calculator

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The Bottom Line: My Responsibilities1. Help you comprehend materials and meet course

objectives

2. Prepare and provide clear instruction on assignments

and exams

3. Provide fair grading

4. Respond to e-mail in 48 hours the latest

5. Adjust course as needed to benefit the majority of

students

Let me know if I fall short in any of the above,

any concern don’t hesitate to speak it out.

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The Bottom Line: Your Responsibilities

1. Read assigned readings before class

2. Complete and turn in the homework on time

3. Seek help when needed (don’t let problems accumulated)

4. Documented emergency only, No excuses!

In short, try your best and have fun!

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How to fail this class?

Cheating of all kinds Do not read the textbook and materials Overall grade of less than 60% Do not complete homework Do not come to class

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Last but not least, you are on your honor not to cheat, give, or receive help from others when taking quizzes and exams

In-Class Exercise

Practice the math exercises using calculator and Excel (Hands-out or download from course web site)

If you cannot comprehend most of the content of math review please use the tutoring service offered by the college.

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Divisibility RulesA number isdivisible by:

If: Example:

2 The last digit is even (0,2,4,6,8)128 is

129 is not

3The sum of the digits is divisible

by 3

381 (3+8+1=12, and 12÷3 = 4) Yes

217 (2+1+7=10, and 10÷3 = 3 1/3) No

4 The last 2 digits are divisible by 41312 is (12÷4=3)

7019 is not

5 The last digit is 0 or 5175 is

809 is not

6The number is divisible by both 2

and 3

114 (it is even, and 1+1+4=6 and 6÷3 = 2) Yes

308 (it is even, but 3+0+8=11 and 11÷3 = 3 2/3) No

7

•If you double the last digit and subtract it from the rest of the

number and the answer is: 0, or •divisible by 7

(Note: you can apply this rule to that answer again if you want)

672 (Double 2 is 4, 67-4=63, and 63÷7=9) Yes

905 (Double 5 is 10, 90-10=80, and 80÷7=11 3/7) No

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Divisibility Rules cont’d

A number isdivisible by:

If: Example:

9

The sum of the digits is divisible by 9

(Note: you can apply this rule to that answer again if you want)

1629 (1+6+2+9=18, and again, 1+8=9) Yes

2013 (2+0+1+3=6) No

10 The number ends in 0220 is

221 is not

11

If you sum every second digit and then subtract all other digits and the answer is:

•0, or •divisible by 11

1364 ((3+4) - (1+6) = 0) Yes3729 ((7+9) - (3+2) = 11) Yes

25176 ((5+7) - (2+1+6) = 3) No

12 The number is divisible by both 3 and 4648 (6+4+8=18 and 18÷3=6,

also 48÷4=12) Yes916 (9+1+6=16, 16÷3= 5 1/3)

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Thanks!

Looking forward to a rewarding learning

experience.