HLSC 3F20 Lecture 18: Week 18 Notes

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The systematic gathering, analysis and reporting of data about a program to assist in decision-(cid:373)aki(cid:374)g . The approximate truth of any conclusions that involve generalizing from the sample to the entire population; the degree to which those conclusions would hold for other persons in other places and at othe(cid:396) ti(cid:373)es . If (cid:455)ou (cid:373)easu(cid:396)e the e(cid:374)ti(cid:396)e populatio(cid:374) a(cid:374)d (cid:272)al(cid:272)ulate a (cid:448)alue like a (cid:373)ea(cid:374), (cid:455)ou do(cid:374)"t (cid:396)efe(cid:396) to this (cid:448)alue as a statisti(cid:272) it is a . A ____________ is the graphical representation that is produced when an infinite number of samples of the same size are drawn, and a sample statistic calculated for each sample and then plotted in a histogram. The normal curve is based on a large number of scores. A(cid:374)(cid:455) (cid:373)ethod of sa(cid:373)pli(cid:374)g that uses so(cid:373)e fo(cid:396)(cid:373) of (cid:396)a(cid:374)do(cid:373) sele(cid:272)tio(cid:374) (cid:449)he(cid:396)e su(cid:272)h (cid:862)u(cid:374)it(cid:863) i(cid:374) the populatio(cid:374) has a predetermined probability of being sampled: The entire population must be known and accessible.

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