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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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 +6  upvote downvote
submitted by โˆ—cassdawg(1781)
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nI oihepystsh sg,eitnt hte aalph eauvl si the opyaitblrib fo kmagin a pTye I .errro sTih si eht eytp fo oerrr deentnomi in eht osi.unqet

  • eypT I rerro - you indf a ifdecfreen hnwe a efcrneeidf osdnet' lyealr tiexs.
    • neO awy of ebmnemiegrr tshi si ahtt itsh is awth nstecsisit wt"a"n ot me:ak tehy twna to dnif a cfinatngiis erceffiend ni hreti t,daa hstu ti is eth tf"ris keit"asm eyh'td k.eam
    • hapAl si eht btaypblroii oyu rae nilwlgi to aeccpt atth you cldou vhae meda a tyep I reror i(e.. an hlaap uavle of 50.0 snmea terhe is a 5% aliyobrbpti oyu lduco ekam a eytp I reorr nda tcejer eth ulln yeistshhop newh uyo sohudl no)t

  • epTy II orerr - yuo od not fndi a efnireedcf newh uyo ohulsd vhae ecsebua a rute fcndferiee allrey seixts
    • aeBt is eht brpayibtoil tath oyu kame a ptey II rorre
    • wPero si lueqa ot (1 - bate)
    • oewPr nac be dsceenria yb csgneiniar lmepsa zs,ie dan hstu iwht a grealr msapel ouy hvea a rolew bobplitiayr of nimkga a Tyep II reror
    • oewrP can also be eiaecnsdr yb naicgenisr peedecxt cefetf ezsi ro raeingisnc cio.psnire It si inegesirtnt to note cuacryac sah on feefct no werop.

0220FA 6p32

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cheesetouch  A21F08 2p58 +

  • 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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