POL S 15 Lecture Notes - Lecture 13: Null Hypothesis, Confidence Interval, Statistical Hypothesis Testing
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Based on the 15% green m&ms in a random sample of size 55, is the population of m& Given a random sample of shuttle launches, is there a relationship between temper. "no relationship" when working with causal hypotheses, or claim that parame. "there is a relationship" or parameter does not equal h0s value. "there is a positive/negative relationship" or parameter equals an altern. With type i error probability a (e. g. 5%) and with confidence 1-a (e. g. With type i error probability a (e. g. 5%) and with confidence 1-a (e. g. 95%) Interval contains those values for which h0 will not be rejected. Values outside of interval are those values for which h0 will be rejected. Formal significance test approach to hypothesis tests: step 3, make decision. Compare p-value to pre-specified "level of significance", a = maximum probability of. If p-value is less than or equal to (
