CFA1level1统计题
Whichofthefollowingstatementsabouthypothesisatistictestinginvolvingaz-statisticisleastaccurate?
A.thep-valueisthesmallestsignificancelevelatwhichthenullhypothesiscanberejected.
B.Az-testistheoreticallyacceptableinplaceofat-testfortestsconcerningameanwhensamplesizeissmall.
C.Iftheconfidencelevelissetat95%,thechanceofrejcetingthenullhypothesiswheninfactitistrueis5%.
请给原因.答案的原因有点牵强吧.希望有人解释地更好点