Statistical Sciences 2244A/B Chapter Notes - Chapter 12, 17: Binomial Distribution, Probability Distribution, Standard Deviation
15 Jan 2017
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The binomial setting: there are fixed number of n observations, all observations are independent, two outcome categories (success/failure, the probability of success p is the same for each observation. The count of success (x) in a binomial setting is a binomial distribution. X can be from 0 to n. Chapter 17 - introduction to one-sample hypothesis tests. Reasoning tests look for evidence against a claim. Thus, we begin by making a claim that we look for evidence against. Also , hypotheses should be made before seeing the data. Hypothesis is always about a population (not an outcome). H0 and ha are always stated in parameters. The null hypothesis (h0) is a statement of no effect/difference. The alternative hypothesis (ha) is the one we are looking for evidence to claim about a population. When the null hypothesis h0: p=p0 is true: To test if h0: p=p0 is true, use the z-test statistic for the null hypothesis.
