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Retired NBME 21 Answers

nbme21/Block 4/Question#11 (reveal difficulty score)
A study is conducted on patients with asthma ...
If the treatment really changes the mean asthma score by 0.4, there is an 80% chance that a study of this size will find a p-value < 0.05 ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
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 +10  upvote downvote
submitted by โˆ—imgdoc(183)
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isacBylal hist uqsiteno jsut asks a"htw is w"peor dna sask you to nexpial thta 0%8 e.rpwo owPer si 1 - aetb yept( 2 )o,errr lyasabilc hnew a rneciedeff txessi nda eth llun hpehsiyost si terjdcee is wepro. oS fi eth Rx cdsttee a nmae rcieendffe fo 04. in hamtsa in het pitensta ni teh narmetett uorg,p tneh taht atad salfl ni the 80% porew rena,g nad its fsiiniceacng is 9%5 0)&.0p;,5t(l P aelvu si sutj teh yiralopbibt of oemnights nainehppg yb ccaehn, so uyo wath htis ot eb less tath %5 os eweahtvr uyo bdveoers i'tns l.situbhl

I phoe htis pdelh,e dna ecrtocr me fi m'I rgo.wn

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yssya1992  I ahev a uqnieost : swath teh atnoeirl nthe tnebeew eoprw dna P vauel ? +
privatejoker  shTi eno took em a nuitem dan asw udring het salt lcbko so my anbri swa eraydla f.ried uBt ym eriognans swa thta, sa eadstt v,aboe secni ti vaeg you rwe,op ti is lblcaaiys tujs a -odengldwin ywa fo aksngi whta ePorw s,i and owh sith taersle ot pav-leu. u-elavP si het sddo thta teh idnfgin was deu to ecchan eano.l siyulvoOb a l-pvuea ste to ;.050t&l mipiels a teraerg hant %95 chneac hatt het nifgdni is .telgi Scein eht oewrp si sida to eb 8,0% thsi msane that ehtre si an 0%8 hacnec ttah the duyts fngidin si gli,te at ltsea nshiucmo atht it etm teh epsr-te tairierc fo niegb 95% e-nhconnca ra.tdele +
sahusema  80% eahncc )oewrp( het tdyus ecoyltcrr tfneeisidi teh esxtencie of na issoainotac ni eyl.riat If na ooaiscintsa is dirteeenmd ot ,ixtes 59t&;g% chaenc hte utdsy and yeatril eagre ithw aceh htore &(pt50;).l +1



 +8  upvote downvote
submitted by โˆ—andro(269)
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A TNOE OT MPSLEI ENDMDI STDETUNS KEIL FYELSM ! :

Ftrsi peSt : ePorw is ibobltriypa ro nhceac ( ahtt a udyst lliw tdecte a utre e)ednrfcief . So calcen tou vreye seglni itonop thta sysa 80 % of jsbcsetu ( And I nmea eyver lgsnie eno of them !)! hcwih si alylbacsi revey nseigl notiop rmfo A to D

Sonced petS : thsi lveesa oyu tihw noyl iooptn E dan F hhwic era own qnutisoeing royu gnrstaundiedn of teh p aluve ( angia a ioptilyabrb /hancec atths a tysdu lliw etectd a cfeifnerde hwen nnoe stsxie n )I our stdyu lal eht asuelv edboinat wree coeasisdta wtih a p vleua of 530.0 .ei slse ahnt .50.0
OINOT (P F )

hdTir Step : Pcik ootpni F

Yuo lwli dfin htta tmso fo sehet qutonessi rea utjs a pyla on drows - 08 % babotpriyil vs 08 % fo scjbuset ot stte htehewr uyo tedrusnnda tahw the retm llraye msane

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 +3  upvote downvote
submitted by โˆ—nosancuck(102)
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kcBla h!Pawo

Phwoa = 1 - TBEA = ad raet of dme RETU OSV;TEIPSI wuz ad tare ta wchhi uyo gte da rute vsoetspii socsra a abuhcn siuesd?t %08 ereh urhb

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lostweightthxnorovirus  weheverr you delraen abottiss I wanan aerln ;) +12
djinn  iSvniyteist is hte reat of reut teosvi.sip ateB si teh rate of salfe vegaine.st +
helsinki  ... yeha ueyor' dnielietfy a weiht nma +2



 +1  upvote downvote
submitted by โˆ—brasel(20)
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ePorw = ibatyli ot tecetd a enreifcedf ewetenb spguro (fi one ixsstP e) leauv 0&;5.)0(lt = obtibylapir tath ulrsest were ued ot rnmdao nhacec

08% owepr = 8%0 echacn fo eth stuyd negbi elba ot cdteet mytsmop gcensh,a whhci in this csea was 4( AKA0. 0%8 ecanch of tengidect a ngiitisnfca p veual)

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 +1  upvote downvote
submitted by โˆ—sahusema(173)
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%08 ceahnc )(erpwo eth yusdt oeclrtrcy feidisietn the icntseexe fo an icsotaasoin in eya.itrl fI an ioatoinascs si eedmndeirt to xteis, &t5%g9; heccan the tudys adn tiryale reaeg wtih ecah eorht (0)5lpt.;&

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