{"id":4586,"date":"2026-08-11T11:48:52","date_gmt":"2026-08-11T09:48:52","guid":{"rendered":"https:\/\/ellistat.com\/?post_type=guide-dutilisateur&#038;p=4586"},"modified":"2026-08-11T11:48:52","modified_gmt":"2026-08-11T09:48:52","slug":"test-sulle-statistiche-sintetiche","status":"publish","type":"guide-dutilisateur","link":"https:\/\/ellistat.com\/it\/guide-dutilisateur\/test-sur-statistiques-resumes\/","title":{"rendered":"Test sulle statistiche riassuntive"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Questa pagina serve a testare&nbsp;<strong>senza i dati grezzi<\/strong>. Si inseriscono direttamente le statistiche sintetiche.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">\u00c8 utile in tre casi concreti: un rapporto di un fornitore che riporta solo la media e la deviazione standard, una pubblicazione di cui si vuole verificare la conclusione, un calcolo di verifica prima di avviare una prova.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Tre schede:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Quantitative<\/strong>\u00a0: inserire per ogni campione il\u00a0<strong>taglia (sostantivo)<\/strong>, la\u00a0<strong>media<\/strong>\u00a0e l\u2019<strong>deviazione standard (ds)<\/strong>. Ellistat esegue il test come se i dati fossero presenti; ;<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"964\" height=\"486\" src=\"https:\/\/ellistat.com\/wp-content\/uploads\/quantitatif.png\" alt=\"\" class=\"wp-image-4587\" srcset=\"https:\/\/ellistat.com\/wp-content\/uploads\/quantitatif.png 964w, https:\/\/ellistat.com\/wp-content\/uploads\/quantitatif-300x151.png 300w, https:\/\/ellistat.com\/wp-content\/uploads\/quantitatif-768x387.png 768w, https:\/\/ellistat.com\/wp-content\/uploads\/quantitatif-18x9.png 18w\" sizes=\"auto, (max-width: 964px) 100vw, 964px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Qualitative<\/strong>\u00a0: inserire il\u00a0<strong>numero con la caratteristica (k)<\/strong>\u00a0e la\u00a0<strong>taglia (sostantivo)<\/strong>\u00a0per confrontare le proporzioni; ;<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"964\" height=\"422\" src=\"https:\/\/ellistat.com\/wp-content\/uploads\/qualitative.png\" alt=\"\" class=\"wp-image-4588\" srcset=\"https:\/\/ellistat.com\/wp-content\/uploads\/qualitative.png 964w, https:\/\/ellistat.com\/wp-content\/uploads\/qualitative-300x131.png 300w, https:\/\/ellistat.com\/wp-content\/uploads\/qualitative-768x336.png 768w, https:\/\/ellistat.com\/wp-content\/uploads\/qualitative-18x8.png 18w\" sizes=\"auto, (max-width: 964px) 100vw, 964px\" \/><\/figure>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Indipendenza<\/strong>\u00a0: una tabella di contingenza righe \u00d7 colonne, per verificare la dipendenza tra due variabili qualitative.<\/li>\n<\/ul>\n\n\n\n<figure class=\"wp-block-image size-full\"><img loading=\"lazy\" decoding=\"async\" width=\"964\" height=\"508\" src=\"https:\/\/ellistat.com\/wp-content\/uploads\/independance.png\" alt=\"\" class=\"wp-image-4589\" srcset=\"https:\/\/ellistat.com\/wp-content\/uploads\/independance.png 964w, https:\/\/ellistat.com\/wp-content\/uploads\/independance-300x158.png 300w, https:\/\/ellistat.com\/wp-content\/uploads\/independance-768x405.png 768w, https:\/\/ellistat.com\/wp-content\/uploads\/independance-18x9.png 18w\" sizes=\"auto, (max-width: 964px) 100vw, 964px\" \/><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Impostazioni generali: il\u00a0<strong>rischio alfa<\/strong>, e l\u2019<strong>alternativa<\/strong>\u00a0:\u00a0<strong>bilaterale<\/strong>,\u00a0<strong>unilaterale sinistro<\/strong>\u00a0o\u00a0<strong>diritto unilaterale<\/strong>.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\">\ud83d\udca1\u00a0<strong>Bilaterale o unilaterale?<\/strong>\u00a0<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Bilaterale chiede: \u00abC'\u00e8 qualche differenza?\u00bb, <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">L'unilaterale solleva la domanda: \u00ab\u00c8 migliore?\u00bb. L'unilaterale \u00e8 pi\u00f9 potente, ma\u00a0<strong>\u00c8 necessario selezionare il senso prima di visualizzare i dati<\/strong>. Sceglierlo dopo aver verificato la direzione dello scostamento raddoppia il rischio alfa.<\/p>\n<\/blockquote>\n\n\n\n<p class=\"wp-block-paragraph\">Nella scheda \"Indipendenza\", Ellistat seleziona il metodo in base al numero di osservazioni e lo visualizza: *n=1: test binomiale esatto, n=2: test esatto di Fisher, n\u22653: \u03c7\u00b2*. La validit\u00e0 del test \u03c7\u00b2 viene verificata tramite la\u00a0<strong>regola di Cochran<\/strong>, in modalit\u00e0 automatica, Ellistat raggruppa i dati se necessario. I\u00a0<strong>organico previsto<\/strong>\u00a0vengono visualizzate, colorate in base al residuo standardizzato: le caselle pi\u00f9 colorate sono quelle che presentano la dipendenza.<\/p>","protected":false},"featured_media":0,"menu_order":40,"template":"","meta":{"_acf_changed":true},"menu-guide-dutilisateur":[23],"class_list":["post-4586","guide-dutilisateur","type-guide-dutilisateur","status-publish","hentry","menu-guide-dutilisateur-5-statistiques-inferentielles"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.2 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Test sur statistiques r\u00e9sum\u00e9s - Ellistat<\/title>\n<meta name=\"description\" content=\"Pas de donn\u00e9es brutes ? 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