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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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In hphoysties itsgnte, eth alahp vluea si eht arobltibyip of gmknai a yTpe I re.ror Tsih si het ypet of orrer omeentndi ni the .qiuosnet

  • pyTe I rroer - uoy find a iffcredene henw a neeffeicrd nod'est aryell ixs.te
    • Oen awy of rmrbeeinegm hits is atth stih si hwat tstssciine t"na"w to kea:m eyth twan to ifnd a nfnictasgii fnerdefiec ni etrih ,atda usth it is teh isfrt" a"kismet h'teyd a.ekm
    • pAalh si het aliiytbpobr uoy aer wililng ot tcceap tath oyu clodu veha eamd a etpy I rerro .e.(i an lhpaa aveul fo .500 neams ehret si a 5% ilbaibyrpto you dclou eakm a pyte I eorrr dan recjet hte nlul hspeoyihts wehn uyo hosudl )otn

  • Type II rerro - yuo do not dfin a fnedieerfc wenh oyu lusodh vhae uecaseb a teur niffeederc ayerll isetsx
    • tBea is eht bplrbaytoii thta yuo kame a ytpe II rorer
    • owerP is luaqe ot 1( - te)ba
    • wPore acn eb adecinesr by sierniangc pmlaes seiz, dna tshu hiwt a rglrae easplm oyu haev a rowel lbpaoiyrbit fo kgnmai a yTep II orerr
    • woPre nac laos eb cnedsraei by rniignscea deepxtce efcfet izse or niecgnrias oseicnr.pi tI si gsnrtniitee to ntoe ccracuay has on feefct no erpwo.

22A0F0 3p62

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cheesetouch  18FA20 p285 +

  • 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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