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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(1780)
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In ytseophshi egtnist, eth pahla auvle si teh pribyoaiblt fo nmagki a pyeT I er.rro ihTs si hte epyt of orerr nontedmie ni eht ni.qteuso

  • pyTe I rorre - uoy dfni a ereifecfnd newh a cnrfeeefid sn'oedt ylrael etsi.x
    • Oen ayw of grebenimmer isht si htta htis is hwta stsinicets wa""nt ot ame:k yeth anwt ot ifnd a cfiangtinsi fenfdcieer in trihe d,ata htsu it is teh r"fsti ms"tkiea dty'he .keam
    • hpalA si teh ipbiatyrlob oyu rea linglwi ot tcacpe that ouy lucod vaeh amde a pety I rrero .e.(i an phala vueal fo .005 neams rteeh is a %5 rbalopybiit yuo olduc eakm a teyp I erorr adn jceret teh llnu hesiphtoys ewhn you dhluos )otn

  • peTy II reorr - uyo od not ndif a enfireedcf wehn you souldh vhae bsuceea a utre ffedeecinr elryal tiessx
    • eBta si the yoariitlbbp htat uyo ekam a type II rorer
    • wPreo si ualqe to (1 - atb)e
    • worPe nac be seidecnar yb rcieinngas aelmsp szi,e dan hust ithw a legarr empsla you evha a wlero yribblpiota fo inmakg a yTep II rrroe
    • weroP acn lsoa be iecseandr by cniinreags detxepec etecff szie or sinniecarg ripceisn.o It is tiitensengr ot oten crcayauc has no efctef on peor.w

2F20A0 2p36

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  • 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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