Lesson 14: Hypothesis Testing

November 4, 2015

Wed, Nov 4

Review:

• Samples and Surveys
• Your survey should result in a set of data
  • to be used to estimate a mean or other value, or
  • to be used to perform a hypothesis test

Presentation:

• Hypothesis Testing
• Tests of Significance 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 = 100, α = 0.05

Assignment:

• Complete Survey (due Monday)
• Watch the Kahn Academy video series on Hypothesis Testing