{"id":11038,"date":"2025-07-15T13:34:51","date_gmt":"2025-07-15T13:34:51","guid":{"rendered":"https:\/\/functiontranslator.com\/inv-normp\/"},"modified":"2021-02-25T17:25:35","modified_gmt":"2021-02-25T17:25:35","slug":"normsinv","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/pt-pt\/normsinv\/","title":{"rendered":"INV.NORMP"},"content":{"rendered":"

A fun\u00e7\u00e3o NORMSINV<\/strong> no Microsoft Excel e INV.NORMP<\/strong> no Google Planilhas s\u00e3o utilizadas para calcular o inverso da fun\u00e7\u00e3o de distribui\u00e7\u00e3o acumulada (C.D.F.) para uma distribui\u00e7\u00e3o normal padr\u00e3o. Essas fun\u00e7\u00f5es permitem determinar o valor de z (pontua\u00e7\u00e3o Z) correspondente a uma probabilidade espec\u00edfica na distribui\u00e7\u00e3o normal padr\u00e3o.<\/p>\n

Entendendo a Sintaxe<\/h2>\n

As fun\u00e7\u00f5es exigem um \u00fanico par\u00e2metro:<\/p>\n

    \n
  • probabilidade<\/strong>: A probabilidade associada ao valor normal padr\u00e3o que se deseja encontrar. Este deve ser um n\u00famero entre 0 e 1, sem incluir os extremos 0 e 1.<\/li>\n<\/ul>\n

    Exemplo de uso no Excel:<\/strong><\/p>\n

    =NORMSINV(0.95)<\/code><\/pre>\n
    Exemplo de uso no Google Planilhas:<\/strong><\/p>\n
    =INV.NORMP(0.95)<\/code><\/pre>\n
    Os exemplos acima retornam o valor de z que corresponde ao ponto abaixo do qual est\u00e3o 95% dos valores na distribui\u00e7\u00e3o normal padr\u00e3o.<\/p>\n
    Aplica\u00e7\u00f5es Pr\u00e1ticas<\/h2>\n
    Essas fun\u00e7\u00f5es s\u00e3o valiosas em v\u00e1rias \u00e1reas da an\u00e1lise de dados, particularmente em estat\u00edsticas e finan\u00e7as. Vejamos algumas aplica\u00e7\u00f5es pr\u00e1ticas das fun\u00e7\u00f5es INV.NORMP\/NORMSINV.<\/p>\n
    Calculando Intervalos de Confian\u00e7a<\/h2>\n
    Suponhamos que voc\u00ea deseja estabelecer os limites de um intervalo de confian\u00e7a de 95% para um conjunto de dados.<\/p>\n
      \n
    • Calcule os pontos extremos dos 2,5% iniciais e finais da distribui\u00e7\u00e3o, que compreendem a \u00e1rea central de 95%.<\/li>\n<\/ul>\n\n\n\n
      Extremo Inferior (2.5%)<\/th>\n=NORMSINV(0.025)<\/code><\/td>\n<\/tr>\n
      Extremo Superior (97.5%)<\/th>\n=NORMSINV(0.975)<\/code><\/td>\n<\/tr>\n<\/table>\n
      Os valores calculados s\u00e3o os limites dos intervalos de confian\u00e7a para uma distribui\u00e7\u00e3o normal.<\/p>\n
      An\u00e1lise de Risco Financeiro<\/h2>\n
      Em finan\u00e7as, as fun\u00e7\u00f5es s\u00e3o frequentemente aplicadas no c\u00e1lculo do Valor em Risco (VaR). Imagine que voc\u00ea deseja quantificar uma perda potencial no pior cen\u00e1rio (5% dos casos) de uma carteira de $10,000.<\/p>\n
      z = NORMSINV(0.05)<\/code><\/pre>\n
      Supondo um desvio padr\u00e3o da carteira de $500, a perda potencial pode ser calculada por:<\/p>\n
      Perda Potencial = z * $500<\/code><\/pre>\n
      Este c\u00e1lculo oferece uma estimativa da perda m\u00e1xima esperada, considerando as varia\u00e7\u00f5es de pre\u00e7o hist\u00f3ricas da carteira sob uma distribui\u00e7\u00e3o normal.<\/p>\n","protected":false},"excerpt":{"rendered":"
      Devolve o inverso da distribui\u00e7\u00e3o cumulativa normal padr\u00e3o<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[444],"tags":[],"class_list":["post-11038","post","type-post","status-publish","format-standard","hentry","category-compatibilidade"],"acf":[],"yoast_head":"\nFun\u00e7\u00e3o NORMSINV (INV.NORMP) no Excel \u2013 como funciona, exemplos e sintaxe<\/title>\n<meta name=\"description\" content=\"Breve descri\u00e7\u00e3o da fun\u00e7\u00e3o NORMSINV (INV.NORMP) do Excel. 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