PSYC 210 Lecture Notes - Lecture 3: Talking Lifestyle 1278
17 May 2016
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Inferential statistics: to describe, and summarize, your data, to make inferences about the population based on data derived from a randomly-selected sample. Measures of location: measures of dispersion measures of shape. **note: howell uses an uppercase n to represent sample size i will use n only to represent populations and n for samples. N uppercase n, denotes the number of cases in the population n lowercase n, denotes the number of cases in the sample. X uppercase x, denotes a variable, which we"ve labeled x. *note: we could choose to label our variables with another letter, a word, or an acronym. X i th case (or participant) on the x variable sigma, denotes summation. [a mathematical operation (i. e. , adding up what follows the sigma)] Tells user at which data point to begin the specified operation. Adding up the x scorestells user at which data point to n x i=1 i end the specified operation the variable of interest.
