{"id":11132,"date":"2025-07-15T13:34:50","date_gmt":"2025-07-15T13:34:50","guid":{"rendered":"https:\/\/functiontranslator.com\/epadyx\/"},"modified":"2021-02-25T17:29:59","modified_gmt":"2021-02-25T17:29:59","slug":"steyx","status":"publish","type":"post","link":"https:\/\/functiontranslator.com\/pt-pt\/steyx\/","title":{"rendered":"EPADYX"},"content":{"rendered":"

A fun\u00e7\u00e3o STEYX, tamb\u00e9m conhecida como EPADYX em algumas vers\u00f5es do Excel em portugu\u00eas, \u00e9 uma ferramenta estat\u00edstica que calcula o erro padr\u00e3o da estimativa de y para cada valor de x em uma regress\u00e3o linear simples. Essa fun\u00e7\u00e3o \u00e9 essencial para avaliar a precis\u00e3o das previs\u00f5es feitas com base nos dados observados.<\/p>\n

Sintaxe e Exemplos da Fun\u00e7\u00e3o<\/h2>\n

A sintaxe da fun\u00e7\u00e3o STEYX \u00e9:<\/p>\n

STEYX(conjunto_y, conjunto_x)<\/code><\/pre>\n
    \n
  • conjunto_y<\/strong>: o conjunto de dados dependentes.<\/li>\n
  • conjunto_x<\/strong>: o conjunto de dados independentes.<\/li>\n<\/ul>\n
    Esta fun\u00e7\u00e3o \u00e9 utilizada para prever a incerteza nas previs\u00f5es baseadas em um modelo de regress\u00e3o linear.<\/p>\n
    Exemplo pr\u00e1tico:<\/p>\n
    =STEYX(A2:A10, B2:B10)<\/code><\/pre>\n
    Neste exemplo, a fun\u00e7\u00e3o calcula o erro padr\u00e3o dos valores y (coluna A, de A2 a A10) em rela\u00e7\u00e3o aos valores x (coluna B, de B2 a B10).<\/p>\n
    Aplica\u00e7\u00f5es Pr\u00e1ticas da Fun\u00e7\u00e3o<\/h2>\n
    Previs\u00e3o de Vendas<\/h2>\n
    Imagine que voc\u00ea seja um analista de dados tentando prever vendas futuras com base em despesas com publicidade. Considere os seguintes dados hist\u00f3ricos:<\/p>\n\n\n\n\n\n\n
    M\u00eas<\/th>\nDespesas em Publicidade (R$)<\/th>\nVendas (R$)<\/th>\n<\/tr>\n
    Janeiro<\/td>\n1500<\/td>\n12000<\/td>\n<\/tr>\n
    Fevereiro<\/td>\n1800<\/td>\n15000<\/td>\n<\/tr>\n
    Mar\u00e7o<\/td>\n1200<\/td>\n11000<\/td>\n<\/tr>\n
    Abril<\/td>\n1600<\/td>\n13000<\/td>\n<\/tr>\n<\/table>\n
    =STEYX(C2:C5, B2:B5)<\/code><\/pre>\n
    Este c\u00e1lculo ajuda a entender melhor a varia\u00e7\u00e3o esperada nas previs\u00f5es de vendas com base no investimento em publicidade.<\/p>\n
    An\u00e1lise de Desempenho de Alunos<\/h2>\n
    Utilizando a fun\u00e7\u00e3o STEYX para analisar o impacto das horas de estudo no desempenho dos alunos, considere os seguintes dados:<\/p>\n\n\n\n\n\n\n
    Aluno<\/th>\nHoras de Estudo<\/th>\nPontua\u00e7\u00e3o na Prova<\/th>\n<\/tr>\n
    Aluno 1<\/td>\n5<\/td>\n70<\/td>\n<\/tr>\n
    Aluno 2<\/td>\n3<\/td>\n50<\/td>\n<\/tr>\n
    Aluno 3<\/td>\n8<\/td>\n85<\/td>\n<\/tr>\n
    Aluno 4<\/td>\n2<\/td>\n45<\/td>\n<\/tr>\n<\/table>\n
    =STEYX(C2:C5, B2:B5)<\/code><\/pre>\n
    Assim, \u00e9 poss\u00edvel avaliar a varia\u00e7\u00e3o e a previsibilidade das notas com base no tempo de estudo dedicado.<\/p>\n
    A funcionalidade da fun\u00e7\u00e3o STEYX, ou EPADYX, \u00e9 crucial em diversas \u00e1reas como neg\u00f3cios, finan\u00e7as e educa\u00e7\u00e3o para aumentar a precis\u00e3o em modelos preditivos.<\/p>\n","protected":false},"excerpt":{"rendered":"
    Devolve o erro-padr\u00e3o do valor-y previsto para cada x na regress\u00e3o<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[442],"tags":[],"class_list":["post-11132","post","type-post","status-publish","format-standard","hentry","category-estatistica"],"acf":[],"yoast_head":"\nFun\u00e7\u00e3o STEYX (EPADYX) no Excel \u2013 como funciona, exemplos e sintaxe<\/title>\n<meta name=\"description\" content=\"Breve descri\u00e7\u00e3o da fun\u00e7\u00e3o STEYX (EPADYX) do Excel. 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