{"id":4575,"date":"2026-08-11T11:47:59","date_gmt":"2026-08-11T09:47:59","guid":{"rendered":"https:\/\/ellistat.com\/?post_type=guide-dutilisateur&p=4575"},"modified":"2026-08-12T15:57:17","modified_gmt":"2026-08-12T13:57:17","slug":"menu-statistiche-inferenziali","status":"publish","type":"guide-dutilisateur","link":"https:\/\/ellistat.com\/it\/guide-dutilisateur\/menu-statistiques-inferentielles\/","title":{"rendered":"Menu"},"content":{"rendered":"

Il menu \"Statistiche inferenziali\" di ELLISTAT<\/a> comprende cinque voci, ma non tutte sono ugualmente adatte allo stesso scopo. Tre di esse rientrano nell\u2019ambito della statistica classica: consentono di verificare un\u2019ipotesi formulata in precedenza, ad esempio \u00abquesta nuova impostazione riduce la dispersione?\u00bb. <\/p>\n\n\n\n

Le ultime due funzionano al contrario: non impongono alcuna ipotesi di partenza, ma aiutano a costruirne una mettendo a confronto gli elementi che pongono problemi con quelli che invece non ne presentano.<\/p>\n\n\n\n

Questa distinzione cambia il modo di affrontare il menu: prima di scegliere un antipasto, bisogna innanzitutto capire se si vuole confermare un\u2019intuizione o formarne una.<\/p>\n\n\n\n

Entrata<\/strong><\/td>A cosa serve<\/strong><\/td><\/tr><\/thead>
Test<\/strong><\/td>Verificare un'ipotesi sui dati della tabella. Questa \u00e8 la schermata principale.<\/td><\/tr>
Test sulle statistiche riassuntive<\/strong><\/td>Effettuare una verifica senza i dati grezzi, utilizzando una popolazione, una media e una deviazione standard.<\/td><\/tr>
Potenza<\/strong><\/td>Determinare le dimensioni di un test: quante misurazioni occorrono per rilevare una determinata discrepanza?<\/td><\/tr>
BOB vs WOW<\/strong><\/td>Confrontare i prodotti migliori e quelli peggiori per capire cosa li distingue.<\/td><\/tr>
Inversione dei componenti<\/strong><\/td>Identificare, attraverso la sostituzione dei componenti, quello che presenta la variazione.<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n
\n

\ud83d\udca1 I primi tre sono strumenti di statistica classica. Gli ultimi due sono metodi di\u00a0ricerca delle cause<\/strong>\u00a0: non verificano un'ipotesi prestabilita, ma aiutano a formularla.<\/p>\n<\/blockquote>\n\n\n\n

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