SOCY 211 Chapter Notes - Chapter 5: Test Statistic, Statistical Hypothesis Testing, Null Hypothesis
6 Apr 2017
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Estimation: part of final link in statistical inference. Population distribution and sample sample will change every time: population distribution will remain the same, but the sample changes each time we. Population distribution: a histogram of all the measurements in the entire population; idea of a population distribution from a sample. Population parameter: true value of a characteristic of the population distribution. Sample estimate: estimate of the population parameter based on your sample. Estimation: process of inferring a population parameter from sample data. Sampling distribution: the probability distribution of the estimate from repeatedly sampling the population a large number of times. Standard error: standard deviation of the sampling distribution. Confidence intervals: first time we are using data to say something about a larger population. Hypothesis testing requires us to do a formal statement about the null and alternative hypotheses: 2 hypotheses that have to be stated at the beginning of every statistical test.
