PSY 241 Lecture Notes - Lecture 12: Null Hypothesis, Standard Score, Statistic
13 Oct 2016
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Composed of extreme sample values that are very unlikely to be obtained if ho is not false. If sample mean falls within the critical region the ho is rejected. Step 3: collect data and compute sample statistics. Data are collected after hypothesis is stated and criteria for a decision has been established. There are only two possibilities: reject the null hypothesis. If sample statistic falls within the critical region: fail to reject the null hypothesis. If sample statistic does not fall within the critical region. Assumptions are requirements that your data must fulfill for your analysis to be valid: all hypothesis tests have assumptions, what was the assumption for use of the unit normal table. Z score hypothesis tests have 4 assumptions: random sample. Independence of observations: variability of distribution is not changed by the treatment, distribution of sample means is normal can use unit normal table.
