STAT 100 Lecture 4: STAT 100 - CH.4

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STAT 100 Full Course Notes
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STAT 100 Full Course Notes
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Caused by the act of taking a sample. Causes sample results to be different from results of a census. Error not related to act of selecting a sample from the population. A librarian asks students at sfu in a library how often they use the library. Error: will not represent the entire student population since not all use the library and will not be present at the library at the time of the convenience sample. Deviation between sample statistics and the population parameter caused by chance in selecting a random sample. Moe in a confidence statement includes only random sampling errors. Sampling frame list of individuals from a sample is drawn. Under coverage some groups in a population are left out of process of choosing samples. Processing errors mistakes in mechanical tasks in choosing sample. Non-response failure to obtain data from subject.

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