Course Number: OSH 637

Credit Hours: 3

Bassam H. Atieh, Sc.D.

Office: 270-809-6652




Biostatistics and Probability



Course Description and Prerequisite(s)

The study and application of biostatistics and probability distributions in environmental and

health related sampling.  Emphasis is given to hypothesis testing and graphical determination of

confidence intervals.  This course will also cover the use of log scales and their application in

log-normal distributions.  This course is offered to graduate students only.

Prerequisites: MAT 135 or PSY 300, or instructor's approval.



Course Objectives

By the end of this course:

- Students will be able to choose the appropriate method to analyze collected data.

- Students will be able to graphically analyze data and draw conclusions.

- Students will be able to apply statistics in health science related fields, and to determine

  employers' compliance with OSHA standards and guidelines.



Content Outline



     - Organizing and Summary Data

       - Describing Samples & Populations

       - Probability Models & Distributions

         - The Normal Distribution Model

         - The Binomial Model

         - The Poisson Distribution

     - Normal Distributions & Normal Approximation of Binomials

       - Estimation and Confidence Intervals

       - Arithmetically

       - Graphically




     - Hypothesis Testing

     - Comparing Two Populations

     - Prediction & Association

       - Simple Linear Regression and Correlation

     - Chi Square Distribution and Analysis of Frequencies

     - Analysis of Variance

     - Introduction to Nonparametric Statistics

       - Sampling Theory

       - Errors in Experimental Design

       - Statistics and Research





     - OSHA Injury and Fatality Rates

     - Particle and Fiber Size Distributions

     - Distributions of Environmental Samples

       - Normal Distribution (laboratory experimental errors)

       - Log-Normal Distribution (concentrations collected from environmental samples)

       - Poisson's Distribution (particles and fibers counting)

       - Binomial Distribution (determining OSHA's recommended number of workers to

         sample from a given worker population)



Instructional Activities

- Lectures

- Handouts

- Homework

- Case studies



Field, Clinical, and/or Laboratory Experiences

Not applicable...



Text(s) and Resources (Recommended)

- Brockett and Levine, Statistics & Probability and Their Applications, Saunders College Publishing.

- Daniel W. Wayne, Biostatistics: The Foundations of Statistical Analysis for Health Sciences.

  5th. Edition, Wiley Publishing Co.

- Pagano M. and K. Gauvreau, Principles of Biostatistics.  Duxbury Press, Belmont, California.

- Handouts by topic/subject when applicable.



Evaluation and Grading Procedures

- Homework: 30%

- Mid-term exam: 35%

- Final exam: 35%



Final Course Grade

A = 94-100

B = 85-93

C = 75-84

E ≤ 74



Attendance Policy

- Attendance is required.

- Unexcused absences may affect your final grade for the course.



Academic Honesty Policy

Murray State University takes seriously its moral and educational obligation

to maintain high standards of academic honesty and ethical behavior.  Instructors are

expected to evaluate students' academic achievements accurately, as well as ascertain

that work submitted by students is authentic and the result of their own efforts, and

consistent with established academic standards.  Students are obligated to respect and

abide by the basic standards of personal and professional integrity.


Violations of Academic Honesty Include


Cheating - Intentionally using or attempting to use unauthorized information such as

books, notes, study aids, or other electronic, online, or digital devices in any academic

exercise; as well as unauthorized com­munication of information by any means to or from

others during any academic exercise.


Fabrication and Falsification - Intentional alteration or invention of any information

or citation in an academic exercise.  Falsification involves changing information whereas

fabrication involves inventing or counterfeiting information.


Multiple Submission - The submission of substantial portions of the same academic

work, including oral reports, for credit more than once without authorization from the



Plagiarism - Intentionally or knowingly representing the words, ideas, creative work, or

data of someone else as one's own in any academic exercise, without due and proper



Instructors should outline their expectations that may go beyond the scope of this policy at the

beginning of each course and identify such expectations and restrictions in the course syllabus.

When an instructor receives evidence, either directly or indirectly, of academic dishonesty, he

or she should investigate the instance.  The faculty member should then take ap­propriate

disciplinary action.


Disciplinary action may include, but is not limited to the following:

1) Requiring the student(s) to repeat the exercise or do additional related exercise(s).

2) Lowering the grade or failing the student(s) on the particular exercise(s) involved.

3) Lowering the grade or failing the student(s) in the course.


If the disciplinary action results in the awarding of a grade of "E" in the course,

The student(s) may not drop the course.


Faculty reserve the right to invalidate any exercise or other evaluative measures if substantial

evidence exists that the integ­rity of the exercise has been compromised.  Faculty also reserve

the right to document in the course syllabi further academic honesty policy elements related

to the individual disciplines.


A student may appeal the decision of the faculty member with the department chair in

writing within five working days.  Note: If, at any point in this process, the student alleges

that actions have taken place that may be in violation of the Murray State University

Non-Discrimination Statement, this process must be suspended and the matter be directed to

the Office of Institutional Diversity, Equity and Access.  Any appeal will be forwarded to

the appropriate university committee as determined by the Provost.



Statements on Non-Discrimination Policy and Students with Disabilities


Non-Discrimination Statement


Murray State University endorses the intent of all federal and state laws created to prohibit

discrimination.  Murray State University does not discriminate on the basis of race, color,

national origin, sex, gender identity, sexual orientation, religion, age, veteran status, or

disability in employment or application for employment, admissions, or the provision of

services and provides, upon request, reasonable accommodation including auxiliary aids

and services necessary to afford individuals with disabilities equal access to participate in

all programs and activities.


In particular, and without limiting the preceding and pursuant to and consistent with the

requirements of Title VI of the Civil Rights Act of 1964 and its regulations 34 CFR 100 et seq.;

Section 504 of the Rehabilitation Act of 1973 and its regulations 34 CFR 104; Title IX of the

Education Amendments of 1972, 20 USC 1681 et seq., and its regulations 34 CFR 106 et seq.;

and the Age Discrimination Act of 1975 and its regulations 34 CFR 110, Murray State

University does not discriminate on the basis of race, color, national origin, sex, handicap, or

age in its educational programs and activities.  This non-discrimination in education programs

and activities extends to employment and admissions and to recruitment, financial aid, academic

programs, student services, athletics, and housing.  Murray State is required by Title IX and

34 CFR part 106 not to discriminate on the basis of sex and the prohibition against sex

discrimination specifically includes a prohibition of sexual harassment and sexual violence.

Examples of prohibited sexual harassment and sexual violence can be found in the (Policy

Prohibiting Sexual Harassment) which can be accessed vis the link referenced in Appendix I.


For more information concerning the application of these provisions may be referred to:

the Executive Director of Institutional Diversity, Equity, and Access/Murray State University

Title IX Coordinator, Murray State University, 103 Wells Hall, Murray, KY 42071.

Telephone: 270-809-3155; Fax: 270-809-6887; TDD: 270-809-3361.



Services for Students with Disabilities Statement


Students with Disabilities: Student requiring special assistance due to a disability should visit

the Office of Student Disability Services immediately for assistance with accommodations.

For more information, students with disabilities should contact the Office of Student Disability

Services, 423 Wells Hall, Murray, KY 42071.

Telephone: 270-809-2018 (Voice) 270-809-5889 (TDD).



Other Required Departmental or Collegiate Committee Information

Not applicable.