Hypothesis Testing*

• For a two-tailed test, half the significance level and tail it either end of the thingy.
• The critical region is the first value immediately outside of the significance level.
• For p values, if p < 0.01:

  There is very strong evidence for rejecting H0.
• For p values, if 0.01<=p<=0.05:

  There is strong evidence for rejecting H0.
• For p values, if p > 0.05:

  There is insufficient evidence for rejecting H0.
• P Value Equals

  The Probability
• The standard deviation of a mean normal distribution = (Standard Deviation over Root of Number of Samples)^2
• Mean Normal Distribution is modelled as XBar ~ N(Mean, Mean Standard Deviation)