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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 htiepshsoy gitste,n het lhpaa lveau is eth ripyilbaotb of nkmiga a Teyp I rrero. Tihs is teh ptye fo rroer nntmoeeid in eth ensitoq.u

  • yTpe I rroer - ouy nfid a erdcefefin nehw a dfrecifnee seo'tnd rallye tiexs.
    • nOe ayw of reenrmgmebi hsti si atht hist si wtha istsisentc w""nta to :make yeht tanw ot dnfi a fnnisaiicgt fnefrecdei ni rheti daat, hstu it si hte "rtsif sma"kite e'dhyt mek.a
    • lpAha is eth balpiyiotrb you are wllgnii to ceacpt ttha you dcuol vaeh emda a ptye I rrore .i.(e an lapha uvale of 0.50 measn terhe si a %5 iyibpbtorla ouy ulcdo meak a teyp I rrero and jeetrc the luln ohhtsiypes wnhe uoy osdulh n)ot

  • Teyp II rerro - uoy do ont dnif a fncfdereei ehwn oyu uoldhs haev seacueb a utre eferfdeinc laerly tixsse
    • atBe is eth lbpyaibtoir ahtt ouy akem a pyte II rrero
    • Poerw is equal to 1( - bet)a
    • wProe anc eb enearicsd yb eriacsngin lamesp zse,i adn tsuh twih a rgrlae asmlep you ahev a rwole liybbaitpro fo nagmki a yTpe II error
    • weroP nca lsao be cniesrdae by rsienanigc eectpxde ceffet szie or nsairgniec insie.opcr tI is eirgstnenit to noet crauccay hsa no eetfcf on powr.e

2A020F 326p

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cheesetouch  2F8A10 2p85 +

  • 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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