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Retired NBME 15 Answers

nbme15/Block 3/Question#48 (reveal difficulty score)
A paper says, "We chose the sample size to ...
5%, Type I error ๐Ÿ” / ๐Ÿ“บ / ๐ŸŒณ / ๐Ÿ“–
tags: biostats repeat

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submitted by โˆ—cassdawg(1781)
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nI shitpeohsy sgteit,n het aalph vauel si the oiptibayblr of makngi a epyT I erro.r hTis is eth tepy of eorrr ntdoinmee in eht u.itosneq

  • pTye I rorer - uoy dnfi a cfreniedef enhw a diecrnefef 'otdnes aeylrl tise.x
    • Oen wya of bemgeemrrin ihts si htat tish is twha sicsnseitt w"an"t ot akem: tyhe twan ot idnf a sciningftia nefreidfec in theri at,ad tuhs ti si hte tfr"is "mkestia det'hy a.ekm
    • hAlpa si eth btairypliob yuo are niiglwl to pceatc ahtt uoy dcuol vahe dmae a pyte I rrore ei(.. an alpah evual of 050. nsema eterh is a 5% ralibtpbyoi yuo codlu kmea a etpy I rrore dan ejerct eht nlul hsoptehsiy ewnh uoy dulsho to)n

  • pyeT II rrero - you do nto nfid a enfrcifeed hnew uyo sldohu veha bseauec a true nriceedffe ylalre tessxi
    • eaBt si hte iobiylbrpat taht ouy kmea a pyet II rrroe
    • Pwreo is alqeu to (1 - taeb)
    • Peorw acn eb incarseed yb gniiescrna ampels i,zes nda hsut iwht a glarre asemlp ouy evha a erolw yaliiprbotb fo kamgni a eTyp II error
    • orweP cna olsa be nadrseeic by ignsicrane eeectpdx ceffte zise ro asingnerci snieip.orc tI is eitinrtnseg ot toen aaccrcuy ahs no tfcefe on rep.wo

F2020A 32p6

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cheesetouch  F10A28 p258 +

  • The P value is the probability that a type 1 error has been committed, and the null hypothesis has been erroneously rejected.

  • A P value of 0.05 or less is considered statistically significant.


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