PSY100H1 Study Guide - Midterm Guide: General Idea, Effect Size, Level Of Measurement
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PSY100H1 Full Course Notes
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Descriptive statistics summarize a data set describe its characteristics. Inferential statistics and hypothesis testing: nov 22, 2012 lec 9. What the average and standard deviation for the data set is that you collected. But you want to go beyond the data that you collected. Descriptive stats are impt because you need 2 describe to ppl what exactly your data looked like but you try to make conclusions about larger group using your sample. You want representative sample and ensure sample is sufficiently large so you can draw inferences about the population that sample comes from. Polling organization are good at representative samples and can predict how population will behave and draw some conclusion about the population by using the sample. This isn"t as straight- forward as it sounds can"t go just go by the average have to do more work. Inferential statistics are used to draw inferences about population -from a sample.
