Six Sigma Hypothesis Testing Fundamentals

Six Sigma Green Belt    |    Intermediate
  • 14 videos | 51m 50s
  • Includes Assessment
  • Earns a Badge
  • Certification CPE
Rating 4.0 of 128 users Rating 4.0 of 128 users (128)
During the Analyze phase of a Lean or Lean Six Sigma improvement project, the team conducts a number of statistical analyses to determine the nature of variables and their interrelationships in the process under study. This can in turn lead to business process improvement. In this course, you'll learn about some of the basic concepts relating to hypothesis testing, and how it can drive process improvement, process control, and process design. You'll also explore how to carry out various types of hypothesis test design, to find and compare means. The course is aligned with ASQ's 2015 Six Sigma Green Belt Body of Knowledge.

WHAT YOU WILL LEARN

  • Identify the purpose of hypothesis testing
    Distinguish between hypotheses testing concepts
    Identify best practices when establishing the practical significance of hypothesis testing results
    Recognize how confidence intervals are used in hypothesis testing
    Distinguish between error types
    Identify factors that affect the power of a hypothesis test
    Determine sample size for a given alpha risk level using margin of error formula
  • Sequence the steps in the hypothesis testing process
    Distinguish between hypothesis tests
    Interpret hypothesis test results and determine appropriate response
    Distinguish between t- and z-tests
    Test a hypothesis using a pooled two-sample test for means
    Test a hypothesis using a non-pooled two-sample test for means

IN THIS COURSE

  • 35s
  • 3m 9s
    During this video, you will learn how to identify the purpose of a hypothesis test. FREE ACCESS
  • Locked
    3.  Null and Alternative Hypotheses
    3m 33s
    In this video, find out how to distinguish between hypotheses testing concepts. FREE ACCESS
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    4.  Statistical and Practical Significance
    3m 50s
    Learn how to identify best practices when establishing the practical significance of hypothesis testing results. FREE ACCESS
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    5.  Point and Interval Estimates
    4m 24s
    In this video, you will learn how to recognize how to use confidence intervals in hypothesis testing. FREE ACCESS
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    6.  Type I and Type II Errors
    4m 37s
    During this video, you will learn how to distinguish between error types. FREE ACCESS
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    7.  Power of a Hypothesis Test
    2m 54s
    Discover how to identify factors that affect the power of a hypothesis test. FREE ACCESS
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    8.  Determining Appropriate Sample Size
    3m 31s
    In this video, you will learn how to determine sample size for a given alpha risk level using the margin of error formula. FREE ACCESS
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    9.  Hypothesis Testing Steps
    3m 21s
    During this video, you will learn how to sequence the steps in the hypothesis testing process. FREE ACCESS
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    10.  One- or Two-tailed Hypothesis Tests
    2m 19s
    In this video, you will learn how to distinguish between hypothesis tests. FREE ACCESS
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    11.  The Critical Value and P-value Methods
    2m 35s
    Learn how to interpret hypothesis test results and take appropriate action. FREE ACCESS
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    12.  One-sample t- and z-tests
    6m 48s
    In this video, you will learn how to distinguish between t-tests and z-tests. FREE ACCESS
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    13.  Pooled Two-sample t-test for Means
    5m 46s
    During this video, you will learn how to test a hypothesis using a pooled two-sample test for means. FREE ACCESS
  • Locked
    14.  Non-pooled Two-sample t-test for Means
    4m 27s
    Discover how to test a hypothesis using a two-sample test for means that is not pooled. FREE ACCESS

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