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* HYpOTnells testing > 0 sraristical mernod thar user saniple AGN 10 evaluate _a hypothesis about a popuiarion = Procedure _* Stare Mypornesis about a populanon_ — _* Predict the choroctertstics Of the sampie based on the —— hrypotinesis __F obtain a random sampie srom the Popuianon A compare the obtained sampie dara with the pre: _____ dition made grom te hypothesis ___? consistent, hypothesis Is reasonable ON discrepant, hypothesis is rejected © The Cements of a Hypotness Test ae — THE unknown populations hypottrmcal, the treaiment _ AS Never administered to the entire population = _THE Sampre in the researcn Mudu. because we connor __AOMINISTER the THOIMENT 10 the Entire population, __Sampte iy used in the acral research = Figure a - — Known ONNgINOD Unknown Treated ‘population -- ~~~ =-~-{— popularion — eM Az? —— Treated sample lotion there ts no Cnonge, no difference, And no rela- thoncnip — > Erariipi, behavior ¢or the populanion of male customers __* Alternate hypothesis (Ht); stores that there 1s 4 Change, diggerence, and FeLATONshHiP_in the general ___popuyarion ___> Example, H4> red shirt does nave an effect gor ThE popularion on tipping and wit Cause_a Chang |___ a seareher fous to reject Ho red Shirt hos mo efeect on tipping | Katunadtia Pamphar 2020-0100 - 0004 _ 7 Stt the criteria foro decision __* Distribution of o sampie mean is awided into > MOL NEY 10 be optoined if HOW true __? Tove VEIY UMtixely To be obToined i Ho Wy true — + The alpha level, or revel oF signigicance, is a proba- bwNtY verve Used to define “Very untinery* _ 7 The Crit\cot teyion is Composed of the extreme somple VOWRS THAT OVE Very UNliKely TO be oprained if Ho is tue > THE pOUNdOIES are Aerermined vy the alpha evel 7 Ag Sample AAI gAN_In the Critical yegion, Ho \s_ __reyeeted = Cole dara and Compe sample sramsrits * Doro conerted OCTEr HYPorHMeLS tested and Criteria FOr ecision set 7 THis sequence ensures objectivity _* Compure o Sample starisnit (2sLore) tT show the EAOU position OF The sampie Me. nyPOTesized POPULATION — mean; Om = Standard error between M ond AL 7 _MOKe OAR LisION 1 Je SOMMple BIG Gre Mor inthe (ritkcal region, the # AN ONO\OYY for _MypOTMELis testing: jury erigt ___7 Trial begins with HO, jnnocent untit proven guilty > Poe Gnd prosecutors garner evidence (datas To reject Annotent plea and Conclude Quilt {AMEE 1S SUREICIENt evidence, Jury reject innocence —__ Gaim ang condudes guilt “IF there {s not enough evidence, jury sails to Convil DUt ALS NOt com(lude degendant ts innocent me —_* A Coser took Ot the B-score statis ~ The F-Score fOr mura, Os tecipe Scanned with CamScanner __* Af sample dara ore in the criticat_tegion, Ho it rejected é 
