Lesson 15: One-Tailed vs Two-Tailed Hypothesis Tests

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November 8, 2015 at 10:26 pm  •  Posted in f15-busad265 by  •  1 Comment

Mon, Nov 9

Review:

Presentation:

  • 1-Tailed and 2-Tailed Tests
  • Kahn Academy video
  • Example Problem
    • Ho: μ = 25, Ha: μ > 25
    • x-bar = 28.2, n=64, σ = 8.4, α = 0.05

Activity:

  • Problems
    • Ho: μ = 7.4, Ha: μ < 7.4, x-bar = 6.9, n=24, σ = 1.2, α = 0.05
    • Ho: μ = 1200, Ha: μ > 1200, x-bar = 1215, n=121, σ = 130, α = 0.05

Assignment:

  • Gather Survey Responses through your own network of CSU-Pueblo students
  • Post a Link to your Survey on Twitter
  • Take as many Surveys as possible to help fellow students
  • Let them know you’ve completed their survey by Retweeting

 

 

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