SOC222H5 Chapter Notes - Chapter 9: Statistical Hypothesis Testing, Standard Score, Sampling Distribution
Document Summary
Statistical hypothesis testing - procedure that allows us to evaluate hypotheses about population parameters based on sample statistics. Research hypothesis (h1) - statement reflecting the substantive hypothesis. It"s always expressed in terms of pop parameters, but its specific form varies from test to test. Null hypothesis (h0) - statement of no difference that contradicts the research hypothesis and is always expressed in terms of population parameters. Specifies that the values of one group are either larger or smaller than some specified pop value. Right-tailed test - the sample outcome is hypothesized to be at the right tail of the sampling distribution. Left-tailed test - the sample outcome is hypothesized to be at the left tail of the sampling distribution. Equally interested in whether the values are less than or greater than one another. The sample outcome may be located at both the lower and the higher ends of the sampling distribution.
