Descriptive Statistics (by LabCE)

2 P.A.C.E. contact hour(s)

(based on 334 customer ratings)

Beverly Schieltz, MS, MT (ASCP) and Brad Westover
Reviewer: Rory Huschka, M.Ed., MT(ASCP)

Course provided by LabCE.

Statistics is the branch of mathematics that deals with the organization, analysis, and interpretation of information. This course discusses statistics that are used in the laboratory for assessment of quality control. In this course you will primarily learn about descriptive statistics which deals with the enumeration, organization, and graphic representation of data.
This course is part of a series of courses adapted for the web by MediaLab Inc. under license from Educational Materials for Health Professionals Inc. Dayton OH, 45420. Copyright EMHP.

See more courses in: Quality Control & Lab Math

Included In These Course Packages

Continuing Education Credits

P.A.C.E.® Contact Hours (acceptable for AMT, ASCP, and state recertification): 2 hour(s)
Course number 578-084-20, approved through 8/31/2022
Course number 20-787986, approved through 9/1/2022

Objectives

  • Explain why knowledge of statistics is important to laboratory scientists.
  • Compare and contrast the following terms:
    • sample and population
    • data, statistic, and parameter
    • independent and dependent variable
    • discrete and continuous data
  • Prepare tables and figures of data that meet the criteria specified in this unit.
  • Describe "frequency distribution" and explain the advantage of presenting data in this manner.
  • Given a set of data, construct a frequency table according to criteria stated in this unit.
  • Given a set of data, construct both actual and relative frequency distributions that accurately represent the discrete or continuous nature of the data.
  • Define and calculate the following measures of central tendency:
    • mean
    • median
    • mode
  • Learn what percentage of data, in a normal distribution, is encompassed by 1, 2, and 3 standard deviations.
  • Given a set of data, calculate its variance and standard deviation.
  • Given the mean and standard deviation of a set of data in a normal distribution, find the ranges encompassing 68%, 95%, and 99% of all observations.
  • Describe at least two situations in which coefficient of variation is a useful tool.
  • Calculate coefficient of variation when given the mean and standard deviation of a set of data.
  • Explain how coefficient of variation is used in the clinical laboratory.
  • Upon completion of this course, the student will be able to use the appropriate descriptive statistics principles to present and analyze data.

Customer Ratings

(based on 334 customer ratings)

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Course Outline

  • Introduction to Statistics
      • Introduction to Statistics
      • Why Statistics?
      • Descriptive Statistics
  • Definition of Statistics Terms
      • Samples and Populations
      • Data, Statistics, and Parameters
      • Independent and Dependent Variables
      • Discrete and Continuous Data
  • Graphic Representation of Data
      • Importance of Professional Tables and Graphs
      • Table Specifications
      • Figures Specification
  • Frequency Distribution
      • Data and Data Pairs
      • Using Frequency Distributions
      • Reading Frequency Distributions
      • Constructing Frequency Distributions
      • A Frequency Distribution Example
      • Step 1: Select Size and Number of Class Intervals
      • Step 2: List the Class Intervals
      • Step 3: Sort the Data
      • Step 4: Determine Frequencies
      • Step 5: Determine Relative Frequencies
      • Graphing Frequency Distributions
      • Bar Chart
      • Histogram
      • Frequency Polygon
      • Absolute vs. Relative Frequency
  • Measures of Central Tendency
      • Mean, Median, and Mode
      • Mean
      • Median
      • Mode
  • Measures of Spread
      • Standard Deviation
      • Standard Deviation (continued)
      • Standard Deviation Example
      • Standard Deviation Example (continued)
  • Normal Distribution
      • Introduction to the Normal Distribution
      • Normal Distribution
      • 68-95-99 Rule Illustrated
      • Inferences from Sample Data
  • Coefficient of Variation
      • A Measure of Relative Variability
      • Using the Coefficient of Variation
      • Monitoring Methods
  • References
      • References

Additional Information

Level of instruction: Intermediate
 
Intended audience: This course is appropriate for laboratory professionals, and for students in clinical laboratory science programs who want a review of the statistics that are analyzed for assessment of quality control.
 
Author information: Beverly Schieltz, MS, MT(ASCP), is a lecturer in the Department of Biological Sciences at Wright State University located in Dayton, Ohio.
 
Author information: Brad Westover received his BS in Physics in 2006 from the California Institute of Technology. He is currently pursuing a Ph. D. at the University of California, San Diego.
 
Reviewer information:  Rory Huschka, M.Ed., MT(ASCP), has over 20 years of combined experience as a medical technologist, technical supervisor, professor, and manager. He is the former Director of Clinical Laboratory Science and Medical Laboratory Technician Programs. He is currently a Program Director at MediaLab, Inc. Rory holds a BS degree in Medical Technology from North Dakota State University and a Masters in Educational Leadership. 
 
About the Course: This course is part of a series of courses adapted for the web by MediaLab Inc. under license from Educational Materials for Health Professionals Inc. Dayton OH, 45420. Copyright EMHP.
 
 

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