Stat Test 2 Notes

Stat Test 2 Notes - Explanatory variable – explains or...

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Data Collection Population – the entire group under study Census – a count of the entire population Sample – a subset of the population Two types of studies: 1. Observational study – observes individuals and measures variables of interest without influencing the responses 2. Experiment – actively impose a treatment to observe and measure the response Response variable – measures an outcome of a study
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Unformatted text preview: Explanatory variable – explains or influences changes in a response variable Response variable depends on the explanatory variable Two variables are confounded when their effects on a response variable cannot be distinguished H : some parameter = a number /or/ another parameter H a : same parameter (?) a number /or/ another parameter H : μ =...
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