{"id":325,"date":"2023-08-02T11:47:03","date_gmt":"2023-08-02T11:47:03","guid":{"rendered":"https:\/\/statorials.org\/cn\/%e9%80%82%e7%94%a8%e6%80%a7%e6%b5%8b%e8%af%95\/"},"modified":"2023-08-02T11:47:03","modified_gmt":"2023-08-02T11:47:03","slug":"%e9%80%82%e7%94%a8%e6%80%a7%e6%b5%8b%e8%af%95","status":"publish","type":"post","link":"https:\/\/statorials.org\/cn\/%e9%80%82%e7%94%a8%e6%80%a7%e6%b5%8b%e8%af%95\/","title":{"rendered":"\u9002\u7528\u6027\u6d4b\u8bd5"},"content":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4ec0\u4e48\u662f\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u4ee5\u53ca\u5b83\u5728\u7edf\u8ba1\u5b66\u4e2d\u7684\u7528\u9014\u3002\u5b83\u8fd8\u5c55\u793a\u4e86\u5982\u4f55\u6267\u884c\u9002\u5408\u6027\u6d4b\u8bd5\uff0c\u6b64\u5916\uff0c\u60a8\u5c06\u80fd\u591f\u770b\u5230\u9010\u6b65\u89e3\u51b3\u7684\u7ec3\u4e60\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"%c2%bfque-es-una-prueba-de-bondad-de-ajuste\"><\/span>\u4ec0\u4e48\u662f\u9002\u5408\u6027\u6d4b\u8bd5\uff1f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><strong>\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c<\/strong>\u662f\u4e00\u79cd\u7edf\u8ba1\u68c0\u9a8c\uff0c\u53ef\u8ba9\u6211\u4eec\u786e\u5b9a\u6570\u636e\u6837\u672c\u662f\u5426\u7b26\u5408\u7279\u5b9a\u7684<a href=\"https:\/\/statorials.org\/cn\/\u6982\u7387\u5206\u5e03-1\/\">\u6982\u7387\u5206\u5e03<\/a>\u3002\u6362\u53e5\u8bdd\u8bf4\uff0c\u5145\u5206\u6027\u68c0\u9a8c\u7528\u4e8e\u68c0\u67e5\u89c2\u6d4b\u6570\u636e\u662f\u5426\u4e0e\u9884\u671f\u6570\u636e\u76f8\u5bf9\u5e94\u3002<\/p>\n<p>\u6211\u4eec\u7ecf\u5e38\u5c1d\u8bd5\u5bf9\u4e00\u79cd\u73b0\u8c61\u8fdb\u884c\u9884\u6d4b\uff0c\u56e0\u6b64\uff0c\u6211\u4eec\u5bf9\u6211\u4eec\u8ba4\u4e3a\u4f1a\u53d1\u751f\u7684\u6240\u8ff0\u73b0\u8c61\u6709\u9884\u671f\u503c\u3002\u7136\u800c\uff0c\u6211\u4eec\u5fc5\u987b\u6536\u96c6\u6570\u636e\u5e76\u68c0\u67e5\u6536\u96c6\u7684\u6570\u636e\u662f\u5426\u7b26\u5408\u6211\u4eec\u7684\u9884\u671f\u3002\u56e0\u6b64\uff0c\u5145\u5206\u6027\u6d4b\u8bd5\u4f7f\u6211\u4eec\u80fd\u591f\u4f7f\u7528\u7edf\u8ba1\u6807\u51c6\u6765\u51b3\u5b9a\u9884\u671f\u6570\u636e\u548c\u89c2\u5bdf\u5230\u7684\u6570\u636e\u662f\u5426\u76f8\u4f3c\u3002<\/p>\n<p>\u56e0\u6b64\uff0c\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u662f\u4e00\u79cd<a href=\"https:\/\/statorials.org\/cn\/\u5047\u8bbe\u68c0\u9a8c1\/\">\u5047\u8bbe\u68c0\u9a8c<\/a>\uff0c\u5176\u96f6\u5047\u8bbe\u662f\u89c2\u6d4b\u503c\u7b49\u4e8e\u671f\u671b\u503c\uff0c\u53e6\u4e00\u65b9\u9762\uff0c\u68c0\u9a8c\u7684\u5907\u62e9\u5047\u8bbe\u8868\u660e\u89c2\u6d4b\u503c\u5728\u7edf\u8ba1\u4e0a\u4e0d\u540c\u4ece\u9884\u671f\u503c\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-db79847cd8097a2baca298bf82594f4f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{cases}H_0: f(x)=f_o(x)\\\\[2ex]H_1: f(x)\\neq f_o(x)\\end{cases}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"147\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u5728\u7edf\u8ba1\u5b66\u4e2d\uff0c\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u4e5f\u79f0\u4e3a<a href=\"https:\/\/statorials.org\/cn\/\u5361\u65b9\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\/\">\u5361\u65b9\u68c0\u9a8c<\/a>\uff0c\u56e0\u4e3a\u68c0\u9a8c\u7684\u53c2\u8003\u5206\u5e03\u662f\u5361\u65b9\u5206\u5e03\u3002 <\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"formula-de-la-prueba-de-bondad-de-ajuste\"><\/span>\u9002\u5408\u5ea6\u68c0\u9a8c\u516c\u5f0f<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p><a href=\"https:\/\/statorials.org\/cn\/\u914d\u5408\u8d28\u91cf\/\">\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c<\/a>\u7edf\u8ba1\u91cf\u7b49\u4e8e\u89c2\u6d4b\u503c\u4e0e\u671f\u671b\u503c\u4e4b\u5dee\u7684\u5e73\u65b9\u548c\u9664\u4ee5\u671f\u671b\u503c\u3002<\/p>\n<p>\u56e0\u6b64\uff0c<strong>\u5145\u5206\u6027\u68c0\u9a8c\u7684\u516c\u5f0f<\/strong>\u5982\u4e0b\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-ca52fc2f501a2bff49c05e6c321e242e_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\displaystyle\\chi^2=\\sum_{i=1}^k\\frac{(O_i-E_i)^2}{E_i}\" title=\"Rendered by QuickLaTeX.com\" height=\"52\" width=\"154\" style=\"vertical-align: -21px;\"><\/p>\n<\/p>\n<p style=\"margin-bottom:5px\">\u91d1\u5b50\uff1a<\/p>\n<ul style=\"color:#FF8A05; font-weight: bold;\">\n<li>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-984dc78529fc235b078a9f3b62d0f0c4_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\chi^2\" title=\"Rendered by QuickLaTeX.com\" height=\"19\" width=\"18\" style=\"vertical-align: -4px;\"><\/p>\n<p>\u662f\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u7edf\u8ba1\u91cf\uff0c\u9075\u5faa\u5361\u65b9\u5206\u5e03<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-7dfca2445cd362ac42fb9032c9cf2367_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"k-1\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"39\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u81ea\u7531\u7a0b\u5ea6\u3002<\/li>\n<li>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-d42bc2203d6f76ad01b27ac9acc0bee1_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"k\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"9\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u662f\u6570\u636e\u6837\u672c\u5927\u5c0f\u3002<\/li>\n<li>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-434bc05ea7818e67065a4f690de03718_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"O_i\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"19\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u6570\u636e i \u7684\u89c2\u6d4b\u503c\u3002<\/li>\n<li>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-a1e6cfc87bb6b00130570c8c9f348b98_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"E_i\" title=\"Rendered by QuickLaTeX.com\" height=\"15\" width=\"18\" style=\"vertical-align: -3px;\"><\/p>\n<p>\u662f\u6570\u636e i \u7684\u671f\u671b\u503c\u3002<\/li>\n<\/ul>\n<p>\u56e0\u6b64\uff0c\u7ed9\u5b9a\u663e\u7740\u6027\u6c34\u5e73<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-5f44d9bbc8046069be4aa2989bff19aa_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\alpha\" title=\"Rendered by QuickLaTeX.com\" height=\"8\" width=\"11\" style=\"vertical-align: 0px;\"><\/p>\n<p>\uff0c\u8ba1\u7b97\u51fa\u7684\u68c0\u9a8c\u7edf\u8ba1\u91cf\u5e94\u4e0e\u4e34\u754c\u68c0\u9a8c\u503c\u8fdb\u884c\u6bd4\u8f83\uff0c\u4ee5\u786e\u5b9a\u662f\u5426\u62d2\u7edd\u5047\u8bbe\u68c0\u9a8c\u7684\u539f\u5047\u8bbe\u6216\u5907\u62e9\u5047\u8bbe\uff1a<\/p>\n<ul style=\"color:#FF8A05; font-weight: bold;\">\n<li style=\"margin-bottom:16px\"><span style=\"color:#101010;font-weight: normal;\">\u5982\u679c\u68c0\u9a8c\u7edf\u8ba1\u91cf\u5c0f\u4e8e\u4e34\u754c\u503c\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-63233cd2098dd4d4be73a18d4ab3df18_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\chi_{1-\\alpha|k-1}^2\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"66\" style=\"vertical-align: -10px;\"><\/p>\n<p><\/span>\uff0c\u62d2\u7edd\u5907\u62e9\u5047\u8bbe\uff08\u5e76\u63a5\u53d7\u539f\u5047\u8bbe\uff09\u3002<\/li>\n<li style=\"margin-bottom:16px\"><span style=\"color:#101010;font-weight: normal;\">\u5982\u679c\u68c0\u9a8c\u7edf\u8ba1\u91cf\u5927\u4e8e\u4e34\u754c\u503c\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-63233cd2098dd4d4be73a18d4ab3df18_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\chi_{1-\\alpha|k-1}^2\" title=\"Rendered by QuickLaTeX.com\" height=\"25\" width=\"66\" style=\"vertical-align: -10px;\"><\/p>\n<p><\/span>\uff0c\u62d2\u7edd\u539f\u5047\u8bbe\uff08\u5e76\u63a5\u53d7\u5907\u62e9\u5047\u8bbe\uff09\u3002 <\/li>\n<\/ul>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-6b48f7bb620dca865b7e652e81cc247a_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{l}\\text{Si } \\chi^2<\\chi^2_{1-\\alpha|k-1}\\text{ se rechaza } H_1\\\\[3ex]\\text{Si } \\chi^2>\\chi^2_{1-\\alpha|k-1}\\text{ se rechaza } H_0\\end{array}&#8221; title=&#8221;Rendered by QuickLaTeX.com&#8221; height=&#8221;70&#8243; width=&#8221;243&#8243; style=&#8221;vertical-align: 0px;&#8221;><\/p>\n<\/p>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"como-hacer-una-prueba-de-bondad-de-ajuste\"><\/span>\u5982\u4f55\u8fdb\u884c\u9002\u5408\u6027\u6d4b\u8bd5<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<p>\u8981\u8fdb\u884c\u9002\u7528\u6027\u6d4b\u8bd5\uff0c\u5e94\u9075\u5faa\u4ee5\u4e0b\u6b65\u9aa4\uff1a<\/p>\n<ol style=\"color:#FF8A05; font-weight: bold;\">\n<li style=\"margin-bottom:20px\"><span style=\"color:#101010;font-weight: normal;\">\u6211\u4eec\u9996\u5148\u5efa\u7acb\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u7684\u539f\u5047\u8bbe\u548c\u5907\u62e9\u5047\u8bbe\u3002<\/span><\/li>\n<li style=\"margin-bottom:20px\"><span style=\"color:#101010;font-weight: normal;\">\u5176\u6b21\uff0c\u6211\u4eec\u9009\u62e9\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u7684<a href=\"https:\/\/statorials.org\/cn\/\u4e00\u5b9a\u7a0b\u5ea6\u7684\u4fe1\u5fc3\/\">\u7f6e\u4fe1\u6c34\u5e73<\/a>\uff0c\u4ece\u800c\u9009\u62e9<a href=\"https:\/\/statorials.org\/cn\/\u663e\u7740\u6027\u6c34\u5e73\/\">\u663e\u7740\u6027\u6c34\u5e73<\/a>\u3002<\/span><\/li>\n<li style=\"margin-bottom:20px\"><span style=\"color:#101010;font-weight: normal;\">\u63a5\u4e0b\u6765\uff0c\u6211\u4eec\u8ba1\u7b97\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u7edf\u8ba1\u91cf\uff0c\u5176\u516c\u5f0f\u53ef\u4ee5\u5728\u4e0a\u9762\u7684\u90e8\u5206\u4e2d\u627e\u5230\u3002<\/span><\/li>\n<li style=\"margin-bottom:20px\"><span style=\"color:#101010;font-weight: normal;\">\u6211\u4eec\u4f7f\u7528\u5361\u65b9\u5206\u5e03\u8868\u627e\u5230\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u7684\u4e34\u754c\u503c\u3002<\/span><\/li>\n<li style=\"margin-bottom:20px\"><span style=\"color:#101010;font-weight: normal;\">\u6211\u4eec\u5c06\u68c0\u9a8c\u7edf\u8ba1\u91cf\u4e0e\u4e34\u754c\u503c\u8fdb\u884c\u6bd4\u8f83\uff1a<\/span>\n<ul style=\"color:#FF8A05; font-weight: bold;\">\n<li style=\"margin-bottom:12px; margin-top:12px; margin-left:5%\"><span style=\"color:#101010;font-weight: normal;\">\u5982\u679c\u68c0\u9a8c\u7edf\u8ba1\u91cf\u5c0f\u4e8e\u4e34\u754c\u503c\uff0c\u5219\u62d2\u7edd\u5907\u62e9\u5047\u8bbe\uff08\u5e76\u63a5\u53d7\u539f\u5047\u8bbe\uff09\u3002<\/span><\/li>\n<li style=\"margin-bottom:12px; margin-left:5%\"><span style=\"color:#101010;font-weight: normal;\">\u5982\u679c\u68c0\u9a8c\u7edf\u8ba1\u91cf\u5927\u4e8e\u4e34\u754c\u503c\uff0c\u5219\u62d2\u7edd\u539f\u5047\u8bbe\uff08\u5e76\u63a5\u53d7\u5907\u62e9\u5047\u8bbe\uff09\u3002<\/span> <\/li>\n<\/ul>\n<\/li>\n<\/ol>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"ejemplo-de-una-prueba-de-bondad-de-ajuste\"><\/span>\u5145\u5206\u6027\u6d4b\u8bd5\u793a\u4f8b<span class=\"ez-toc-section-end\"><\/span><\/h2>\n<ul>\n<li>\u4e00\u4f4d\u5546\u5e97\u8001\u677f\u8bf4\uff0c\u5979\u7684\u9500\u552e\u989d\u7684 50% \u662f\u4ea7\u54c1 A\uff0c\u5979\u7684\u9500\u552e\u989d\u7684 35% \u662f\u4ea7\u54c1 B\uff0c\u800c\u5979\u7684\u9500\u552e\u989d\u7684 15% \u662f\u4ea7\u54c1 C\u3002\u4f46\u662f\uff0c\u6bcf\u79cd\u4ea7\u54c1\u7684\u9500\u552e\u6570\u91cf\u5982\u4e0b\u8868\u6240\u793a\uff1a\u5982\u4e0b\u8868\u3002\u5206\u6790\u4e1a\u4e3b\u7684\u7406\u8bba\u6570\u636e\u4e0e\u5b9e\u9645\u6536\u96c6\u7684\u6570\u636e\u662f\u5426\u5b58\u5728\u7edf\u8ba1\u5dee\u5f02\u3002<\/li>\n<\/ul>\n<figure class=\"wp-block-table aligncenter is-style-stripes\">\n<table>\n<thead>\n<tr>\n<th>\u4ea7\u54c1<\/th>\n<th class=\"has-text-align-center\" data-align=\"center\">\u89c2\u5bdf\u5230\u7684\u9500\u552e\u989d (O <sub>i<\/sub> )<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4ea7\u54c1A<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">\u7b2c453\u7ae0<\/td>\n<\/tr>\n<tr>\n<td>\u4ea7\u54c1B<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 268<\/td>\n<\/tr>\n<tr>\n<td>\u4ea7\u54c1C<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 79<\/td>\n<\/tr>\n<tr>\n<td>\u5168\u90e8\u7684<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">800<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\u4e3a\u4e86\u786e\u5b9a\u89c2\u6d4b\u503c\u662f\u5426\u7b49\u4e8e\u671f\u671b\u503c\uff0c\u6211\u4eec\u5c06\u8fdb\u884c\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u3002\u68c0\u9a8c\u7684\u539f\u5047\u8bbe\u548c\u5907\u62e9\u5047\u8bbe\u4e3a\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-db79847cd8097a2baca298bf82594f4f_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{cases}H_0: f(x)=f_o(x)\\\\[2ex]H_1: f(x)\\neq f_o(x)\\end{cases}\" title=\"Rendered by QuickLaTeX.com\" height=\"65\" width=\"147\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u5728\u672c\u4f8b\u4e2d\uff0c\u6211\u4eec\u5c06\u4f7f\u7528 95% \u7684\u7f6e\u4fe1\u6c34\u5e73\u8fdb\u884c\u68c0\u9a8c\uff0c\u56e0\u6b64\u663e\u7740\u6027\u6c34\u5e73\u5c06\u4e3a 5%\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-76d20f2945704d6640a4b9986b8b7c16_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\alpha=0,05\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"69\" style=\"vertical-align: -4px;\"><\/p>\n<\/p>\n<p>\u8981\u627e\u5230\u9884\u671f\u9500\u552e\u503c\uff0c\u6211\u4eec\u9700\u8981\u5c06\u6bcf\u79cd\u4ea7\u54c1\u7684\u9884\u671f\u9500\u552e\u989d\u767e\u5206\u6bd4\u4e58\u4ee5\u603b\u9500\u552e\u989d\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-9daef735efca126bba60ccde38423d7b_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c}E_A=800\\cdot 0,50=400\\\\[2ex]E_B=800\\cdot 0,35=280\\\\[2ex]E_A=800\\cdot 0,15=120\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"92\" width=\"173\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u56e0\u6b64\uff0c\u95ee\u9898\u9891\u7387\u8868\u5982\u4e0b\uff1a<\/p>\n<figure class=\"wp-block-table aligncenter is-style-stripes\">\n<table>\n<thead>\n<tr>\n<th>\u4ea7\u54c1<\/th>\n<th class=\"has-text-align-center\" data-align=\"center\">\u89c2\u5bdf\u5230\u7684\u9500\u552e\u989d (O <sub>i<\/sub> )<\/th>\n<th class=\"has-text-align-center\" data-align=\"center\">\u9884\u671f\u9500\u552e\u989d (E <sub>i<\/sub> )<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u4ea7\u54c1A<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">\u7b2c453\u7ae0<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">400<\/td>\n<\/tr>\n<tr>\n<td>\u4ea7\u54c1B<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 268<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 280<\/td>\n<\/tr>\n<tr>\n<td>\u4ea7\u54c1C<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 79<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 120<\/td>\n<\/tr>\n<tr>\n<td>\u5168\u90e8\u7684<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\">800<\/td>\n<td class=\"has-text-align-center\" data-align=\"center\"> 800<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/figure>\n<p>\u73b0\u5728\u6211\u4eec\u5df2\u7ecf\u8ba1\u7b97\u4e86\u6240\u6709\u503c\uff0c\u6211\u4eec\u5e94\u7528\u5361\u65b9\u68c0\u9a8c\u516c\u5f0f\u6765\u8ba1\u7b97\u68c0\u9a8c\u7edf\u8ba1\u91cf\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-8c76621fbe8504217dfe8ac55b2d6e67_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c}\\displaystyle\\chi^2=\\sum_{i=1}^k\\frac{(O_i-E_i)^2}{E_i}\\\\[6ex]\\chi^2=\\cfrac{(453-400)^2}{400}+\\cfrac{(268-280)^2}{280}+\\cfrac{(79-120)^2}{120}\\\\[6ex]\\chi^2=7,02+0,51+14,00\\\\[6ex]\\chi^2=21,53\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"252\" width=\"372\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u4e00\u65e6\u8ba1\u7b97\u51fa\u68c0\u9a8c\u7edf\u8ba1\u91cf\u7684\u503c\uff0c\u6211\u4eec\u5c31\u4f7f\u7528\u5361\u65b9\u5206\u5e03\u8868\u6765\u67e5\u627e\u68c0\u9a8c\u7684\u4e34\u754c\u503c\u3002\u5361\u65b9\u5206\u5e03\u6709<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-d7ae885b62b57867e96527f583044991_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"k-1=3-1=2\" title=\"Rendered by QuickLaTeX.com\" height=\"12\" width=\"135\" style=\"vertical-align: 0px;\"><\/p>\n<p>\u81ea\u7531\u5ea6\u548c\u91cd\u8981\u6027\u6c34\u5e73\u662f<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-76d20f2945704d6640a4b9986b8b7c16_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\alpha=0,05\" title=\"Rendered by QuickLaTeX.com\" height=\"17\" width=\"69\" style=\"vertical-align: -4px;\"><\/p>\n<p>\uff0c\u7136\u800c\uff1a<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-1850e764fc71b1e7b49b0c4d8133ab89_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"\\begin{array}{c}\\chi^2_{1-\\alpha|k-1}=\\ \\color{orange}\\bm{?}\\color{black}\\\\[4ex]\\chi^2_{0,95|2}=5,991\\end{array}\" title=\"Rendered by QuickLaTeX.com\" height=\"78\" width=\"199\" style=\"vertical-align: 0px;\"><\/p>\n<\/p>\n<p>\u56e0\u6b64\uff0c\u68c0\u9a8c\u7edf\u8ba1\u91cf (21.53) \u5927\u4e8e\u4e34\u754c\u68c0\u9a8c\u503c (5.991)\uff0c\u56e0\u6b64\u62d2\u7edd\u539f\u5047\u8bbe\u5e76\u63a5\u53d7\u5907\u62e9\u5047\u8bbe\u3002\u8fd9\u610f\u5473\u7740\u6570\u636e\u6709\u5f88\u5927\u5dee\u5f02\uff0c\u56e0\u6b64\u5e97\u4e3b\u9884\u671f\u7684\u9500\u552e\u989d\u4e0e\u5b9e\u9645\u9500\u552e\u989d\u4e0d\u540c\u3002<\/p>\n<\/p>\n<p class=\"has-text-align-center\"><img decoding=\"async\" loading=\"lazy\" src=\"https:\/\/statorials.org\/wp-content\/ql-cache\/quicklatex.com-90430933949106828df9b184b6215225_l3.png\" class=\"ql-img-inline-formula quicklatex-auto-format\" alt=\"21,53>5,991 \\ \\color{orange}\\bm{\\longrightarrow}\\color{black} \\ \\text{Se rechaza } H_0&#8243; title=&#8221;Rendered by QuickLaTeX.com&#8221; height=&#8221;17&#8243; width=&#8221;354&#8243; style=&#8221;vertical-align: -4px;&#8221;><\/p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>\u672c\u6587\u89e3\u91ca\u4ec0\u4e48\u662f\u62df\u5408\u4f18\u5ea6\u68c0\u9a8c\u4ee5\u53ca\u5b83\u5728\u7edf\u8ba1\u5b66\u4e2d\u7684\u7528\u9014\u3002\u5b83\u8fd8\u5c55\u793a\u4e86\u5982\u4f55\u6267\u884c\u9002\u5408\u6027\u6d4b\u8bd5\uff0c\u6b64\u5916\uff0c\u60a8\u5c06\u80fd\u591f\u770b\u5230\u9010\u6b65\u89e3\u51b3\u7684\u7ec3 [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[14],"tags":[],"class_list":["post-325","post","type-post","status-publish","format-standard","hentry","category-14"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>\u25b7 \u8d34\u5408\u6d4b\u8bd5<\/title>\n<meta name=\"description\" content=\"\u5728\u8fd9\u91cc\u60a8\u5c06\u4e86\u89e3\u4ec0\u4e48\u662f\u9002\u7528\u6027\u6d4b\u8bd5\u3001\u5b83\u7684\u7528\u9014\u3001\u5982\u4f55\u8fdb\u884c\uff08\u516c\u5f0f\uff09\u4ee5\u53ca\u5177\u4f53\u7684\u5206\u6b65\u793a\u4f8b\u3002\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/statorials.org\/cn\/\u9002\u7528\u6027\u6d4b\u8bd5\/\" \/>\n<meta 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