POLS 2400 Chapter Notes - Chapter 9: Null Hypothesis, Statistical Significance, Type I And Type Ii Errors
31 Oct 2018
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Statistics for people who hate statistics: chapter 9. The researcher is defining the level of risk that they"re willing to take. This degree of risk is the level of statistical significance: statistical significance: the degree of risk you"re willing to take that you will reject a null hypothesis when it is actually true. Different types of error: type 1 error: rejection of a true null hypothesis. You have complete control over this type of error because you have set the level of risk you"re willing to take: type 2 error: accepting a false hypothesis. These are particularly sensitive to the number of subjects in a sample and if that number is too small.
