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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(1780)
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nI tposshiehy tens,tig eth aphla luaev si hte bioypatrbil fo nikamg a peTy I rore.r isTh is het type fo orrre neontdeim ni eht soet.iqun

  • Teyp I rrroe - uyo fdni a neefrfedci hwen a fenidefrec e'odsnt yrelal itxse.
    • One yaw fo mgnemirereb hist si atht hsit is tahw ettnicsiss "an"tw ot :kaem yhte anwt ot nfid a snftiagcnii cfrifnedee ni ihret taad, usht it is het fr"tis ke"tmsia yetd'h .eamk
    • aphAl si eht boyrabilipt uyo rae glnwili ot cpeatc htta uoy dluoc vhea adme a ypte I orrre e(..i na ahpla lueav fo 05.0 mesna erthe is a %5 loyrpbtiiab uyo lcodu amke a eypt I reror dna etjcre teh nllu othpiysshe hnwe ouy holsud tn)o

  • pTye II error - oyu do otn idnf a efcediefrn hwen ouy dlosuh vaeh eabceus a urte fneficedre ylrlae steixs
    • atBe si eth babilpoyirt htta uyo meak a etyp II error
    • oerwP is aquel to (1 - )teab
    • rePow nca eb isndecrae by ecniisargn pelmas iesz, dna hsut wiht a lrgaer msepal yuo ehva a rwoel tiboarpbiyl of amgnki a yeTp II roerr
    • wProe anc osla be enedsairc yb crneaisgni edetcxpe cfetfe eisz or cneiinsgra .rceipnios It si tstreeinnig ot teno yaucaccr ahs no cfeeft no poer.w

F02A02 3p26

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cheesetouch  F0A218 p825 +

  • 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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