MAT 3377 Lecture 4: MAT3377 notes 3
20 Dec 2018
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Under stratified sampling when planningstage expucr etc carried out 0 just compute. Theorm a nh nh nh nh are large. Yoyo 420g a istr aff th 0. 5 25. Se str ntae n l fi cancalculate indirectly or estimate if. N now may use this n h instead of 2 for 9 accurate ci. Ex suppose in pop of n 40,000 ppl there are 3 age groups researcher draw srswor in each some stats as follows find istr b 95 ci for yo. Suppose ya o or 1 p fu ntifeinhyn. An unbiased estimator of p is given by j ayhj. Fstr it nutter far nta l fh n na ci fa 8. Secfstr vatlett when ma or h is large 1004 a. Instr one needs to frgure out how to stratify pop. 1 proportionalallocation may want your stir sample to be goodreflection of the str pop you can choose her such that teh eh for all.
