POLS 3650 Chapter Notes - Chapter 9: Null Hypothesis, Confidence Interval, Statistical Parameter
17 Feb 2017
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Chapter 9: introduction to hypothesis testing page #149-166: null hypothesis (ho) the hypothesis that is tested in the process of statistical inference. The alternative hypothesis is no joke: type i error the error in statistical inferences that derives from the decision to reject a true null hypothesis. If we were to now put a 95% confidence interval around the hypothesized value of 0. 50, we would get the sample confidence interval as computed above (p+1. 98se = 0. 4 to 0. 6 = 40%- 60%) thus, the numbers used in the computations of a confidence interval and hypothesis testing are identical. There are two zones of rejection in the tails of the sampling distribution when the alternative hypothesis is non-directional. Types of hypotheses: null hypothesis (symbolized as ho ) the hypothesis that is tested in the process of statistical inference. The alternative hypothesis is derived from existing theory, previous research, and/pr sound logic reasoning.
