What Sample Size Do I Need?

Duration: 75 Minutes
The webinar will provide important considerations when selecting sample sizes for specific applications. The knowledge gained by attending the webinar will allow practitioners to consider the implications of sample size selection prior to conducting the study and ensure that the information obtained can be useful for decision making.
Sample Size Determination
Instructor: Steven Wachs
Product ID: 501604
Objectives of the Presentation
  • Understand the importance of sample size determination
  • Learn how to calculate sample sizes for various applications
  • Communicate rationale (justification) of selected sample sizes
Why Should you Attend
We often sample from a process or population in order to make an inference about the process based on the sample results. Selecting appropriate sample sizes often vexes many practitioners. This webinar discusses many issues present in any sample size determination. The webinar also discusses several common applications that require an appropriate sample size determination including estimation of product/process performance characteristics, hypothesis tests, acceptance sampling, Statistical Process Control charts, tolerance intervals, and reliability demonstration. When selecting sample sizes, it is important to align the statistical properties of the estimate or test with practical considerations. More data is not always better. Numerous examples are provided to illustrate the key concepts and applications.

Areas Covered
  • Population and Samples
  • Basic Statistics
  • Common Applications requiring sample size determination (e.g. estimation, hypothesis testing, demonstration of conformance to specification)
  • Sample Size Determination (Examples)
Who can Benefit
The target audience includes personnel involved in product/process development, manufacturing, quality, program management, and business operations. In short anybody using sample data to make decisions.
  • R&D Personnel
  • Product Development Personnel
  • Quality Personnel
  • Lab Testing Personnel
  • Operations/Production Managers
  • Quality Assurance Managers, Engineers
  • Process or Manufacturing Engineers or Managers
  • Program or Product Managers
  • Business Analysts
  • Management
$375
Recorded Session for one participant
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Live Session - How it works
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  • Download the Certificate of Attendance and Purchase Invoice from your OCP Account 24 hours after the completion of the session
  • Please let us know your thoughts and views at the end of the webinar, your valuable feedback will help us improve
Recorded Session - How it works
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  • Upon purchase of the recorded session a link will be updated on your OCP Account within 24 hours
  • Please click on the link to access the Recorded Session
  • Presentation handouts in downloadable PDF format will be updated on your OCP Account within 24 hours of the purchase of the product
  • Download the Certificate of Attendance and Purchase Invoice from your OCP Account after 48 hours of the product Purchase
  • Please share your valuable Feedback at the end of the session
Instructor Profile:
Steven Wachs has 25 years of wide-ranging industry experience in both technical and management positions. Steve has worked as a statistician at Ford Motor Company where he has extensive experience in the development of statistical models, reliability analysis, designed experimentation, and statistical process control.

Steve is currently a Principal Statistician at Integral Concepts, Inc. where he assists manufacturers in the application of statistical methods to reduce variation and improve quality and productivity. He also possesses expertise in the application of reliability methods to achieve robust and reliable products as well as estimate and reduce warranty. Steve regularly speaks at industry conferences and provides workshops in industrial statistical methods worldwide.
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