{"id":113564,"date":"2020-01-29T18:18:30","date_gmt":"2020-01-29T17:18:30","guid":{"rendered":"https:\/\/www.superprof.es\/diccionario\/estadistica\/intervalos-caracteristicos.html"},"modified":"2026-10-01T22:47:45","modified_gmt":"2026-10-01T20:47:45","slug":"intervalos-caracteristicos","status":"publish","type":"post","link":"https:\/\/www.superprof.es\/diccionario\/matematicas\/estadistica\/intervalos-caracteristicos.html","title":{"rendered":"Intervalos caracter\u00edsticos"},"content":{"rendered":"<section id=\"sec\" style=\"\">\r\n          \n\n<p class=\"wp-block-paragraph\"><strong><span class=\"s\">P[\u03bc - k < x < \u03bc + k] = p<\/span> <\/strong><\/p>\n\n\r\n                              \r\n                              \n\n<p class=\"wp-block-paragraph\">Hallar el intervalo caracter\u00edstico de una distribuci\u00f3n normal N(0,  1) correspondiente a la probabilidad p = 0.9.<\/p>\n\n\r\n                                            \n\n<p class=\"wp-block-paragraph\"><img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/intervalos-caracter&iacute;sticos-1.png\" alt=\"Explicaciones y ejemplos de intervalos caracter&iacute;sticos - 1\" class=\"cRedimensiona\"  \/><\/p>\n\n\t\r\n                             \n\n<p class=\"wp-block-paragraph\"><img decoding=\"async\" src=\"https:\/\/www.superprof.es\/diccionario\/wp-content\/uploads\/2020\/01\/intervalos-caracter&iacute;sticos-2.gif\" alt=\"Explicaciones y ejemplos de intervalos caracter&iacute;sticos - 2\" \/><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br \/><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">El <strong>nivel de confianza  (p)<\/strong> se designa mediante <strong>1 \u2212 \u03b1<\/strong>.<\/p>\n\n\r\n                              \n\n<p class=\"wp-block-paragraph\">El <strong>nivel de significaci\u00f3n<\/strong>   se designa mediante <strong>\u03b1.<\/strong><\/p>\n\n\r\n                              \n\n<p class=\"wp-block-paragraph\"><strong>El valor cr\u00edtico (k) como z<sub> \u03b1\/2 <\/sub>.<\/strong> <\/p>\n\n\r\n                              \n\n<p class=\"wp-block-paragraph\"><strong>P(Z>z<sub> \u03b1\/2<\/sub>) = \u03b1\/2     <\/strong><\/p>\n\n\r\n                              \n\n<p class=\"wp-block-paragraph\"><strong> <span>P[-z <sub> \u03b1\/2<\/sub> < z < z<sub> \u03b1\/2<\/sub>] = 1 \u2212 \u03b1<\/span> <\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><br \/><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">En una distribuci\u00f3n<strong> N(\u03bc, \u03c3 )<\/strong> el intervalo caracter\u00edstico correspondiente a una probabilidad <strong>p = 1 \u2212 \u03b1<\/strong> es:<\/p>\n\n\r\n                               \r\n                              \n\n<p class=\"actividades_2_g wp-block-paragraph\"><strong>(\u03bc - z<sub> \u03b1\/2<\/sub> \u00b7 \u03c3  , \u03bc + z<sub> \u03b1\/2<\/sub> \u00b7 \u03c3  )<\/strong><\/p>\n\n\r\n                              \r\n                              \r\n                              \n\n<table width=\"501\"  border=\"1\" cellpadding=\"4\" cellspacing=\"0\" class=\"t_izq\" style=\"\" >\r\n                                  \r\n                                    <tr>\r\n                                        <th >1 \u2212 \u03b1<\/th>\r\n                                        <th >\u03b1\/2<\/th>\r\n                                        <th >z<sub> \u03b1\/2<\/sub><\/th>\r\n                                        <th >Intervalos\r\n                                        caracter\u00edsticos<\/th>\r\n                                    <\/tr>\r\n                                    <tr>\r\n                                          <td>0.90<\/td>\r\n                                        <td>0.05<\/td>\r\n                                        <td>1.645<\/td>\r\n                                        <td><strong>(\u03bc - 1.645  \u00b7 \u03c3  , \u03bc + 1.645 \u00b7 \u03c3)<\/strong><\/td>\r\n                                    <\/tr>\r\n                                    <tr>\r\n                                      <td>0.95<\/td>\r\n                                        <td>0.025<\/td>\r\n                                        <td>1.96<\/td>\r\n                                        <td><strong>(\u03bc - 1.96  \u00b7 \u03c3  , \u03bc + 1.96 \u00b7 \u03c3  )<\/strong><\/td>\r\n                                <\/tr>\r\n                                     <tr>\r\n                                        <td>0.99<\/td>\r\n                                        <td>0.005<\/td>\r\n                                        <td>2.575<\/td>\r\n                                        <td><strong>(\u03bc - 2.575  \u00b7 \u03c3  , \u03bc + 2.575  \u00b7 \u03c3 )<\/strong>\r\n                                        <\/td>\r\n                                     <\/tr>\r\n                                   <\/table>\n\n\n\n\n<p class=\"wp-block-paragraph\"><\/section><\/p>\n\n\n","protected":false},"excerpt":{"rendered":"<p>P[\u03bc &#8211; k < x < \u03bc + k] = p Hallar el intervalo caracter\u00edstico de una distribuci\u00f3n normal N(0, 1) correspondiente a la probabilidad p = 0.9. El nivel de confianza (p) se designa mediante 1 \u2212 \u03b1. El nivel de significaci\u00f3n se designa mediante \u03b1. El valor cr\u00edtico (k) como z \u03b1\/2 . [&hellip;]\n<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","advgb_blocks_editor_width":"","advgb_blocks_columns_visual_guide":"","footnotes":""},"categories":[380],"tags":[368],"class_list":["post-113564","post","type-post","status-publish","format-standard","hentry","category-estadistica","tag-i"],"acf":[],"author_meta":{"display_name":"Andra","author_link":"https:\/\/www.superprof.es\/diccionario\/author\/andra"},"featured_img":null,"coauthors":[],"tax_additional":{"categories":{"linked":["<a href=\"https:\/\/www.superprof.es\/diccionario\/matematicas\/estadistica\" class=\"advgb-post-tax-term\">Estad\u00edstica<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">Estad\u00edstica<\/span>"]},"tags":{"linked":["<a href=\"https:\/\/www.superprof.es\/diccionario\/matematicas\/estadistica\" class=\"advgb-post-tax-term\">i<\/a>"],"unlinked":["<span class=\"advgb-post-tax-term\">i<\/span>"]}},"comment_count":"0","relative_dates":{"created":"Publicado 7 a\u00f1os hace","modified":"Actualizado 4 d\u00edas hace"},"absolute_dates":{"created":"Publicado el 29 enero 2020","modified":"Actualizado el 1 octubre 2026"},"absolute_dates_time":{"created":"Publicado el 29 enero 2020 18 h 18 min","modified":"Actualizado el 1 octubre 2026 22 h 47 min"},"featured_img_caption":"","series_order":"","_links":{"self":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/113564","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/comments?post=113564"}],"version-history":[{"count":4,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/113564\/revisions"}],"predecessor-version":[{"id":138705,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/posts\/113564\/revisions\/138705"}],"wp:attachment":[{"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/media?parent=113564"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/categories?post=113564"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.superprof.es\/diccionario\/wp-json\/wp\/v2\/tags?post=113564"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}