{"id":26288,"date":"2023-01-16T10:56:00","date_gmt":"2023-01-16T13:56:00","guid":{"rendered":"https:\/\/mindthegraph.com\/blog\/nuclear-fusion-copy\/"},"modified":"2024-12-05T15:45:12","modified_gmt":"2024-12-05T18:45:12","slug":"significance-level","status":"publish","type":"post","link":"https:\/\/mindthegraph.com\/blog\/nb\/signifikansniva\/","title":{"rendered":"En lettfattelig oppsummering av signifikansniv\u00e5"},"content":{"rendered":"<p>I statistikk er signifikansniv\u00e5et en viktig del av hypotesetestingen. I motsetning til andre tall i de statistiske dataene dine, beregnes ikke signifikansniv\u00e5et av programvaren for statistisk analyse. I stedet velger du selv signifikansniv\u00e5et. Har du noen gang lurt p\u00e5 hvorfor det er slik?&nbsp;<\/p>\n\n\n\n<p>I denne artikkelen vil Mind The Graph gi deg en oversikt over signifikansniv\u00e5et, slik at du enkelt kan forst\u00e5 dets funksjonalitet og betydning.<\/p>\n\n\n\n<h2>Hva er signifikansniv\u00e5et?<\/h2>\n\n\n\n<p>Signifikansniv\u00e5et, ogs\u00e5 kjent som alfa eller \u03b1, er et m\u00e5l som angir hvor mye bevis som m\u00e5 vises i utvalget ditt f\u00f8r du forkaster nullhypotesen og erkl\u00e6rer effekten statistisk signifikant. Allerede f\u00f8r du starter eksperimentet, m\u00e5 du velge et signifikansniv\u00e5.&nbsp;<\/p>\n\n\n\n<p>Det er alts\u00e5 sannsynligheten for \u00e5 forkaste nullhypotesen n\u00e5r den er sann. Et signifikansniv\u00e5 p\u00e5 0,05 betyr for eksempel at det er 5% sjanse for at det finnes en forskjell n\u00e5r det ikke finnes noen. Et lavere signifikansniv\u00e5 betyr at du trenger mer bevis for \u00e5 forkaste nullhypotesen.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/GJtsBNj-zf74UNHK3WLkBcGJonoj6DH0HQNDCVfP0_O2S3SEG3LHXK_xrQiYlVxrOXzbeVQof0558pshJncIEcsMD5VT-vwFXYTevCILwFr8WRVboubvHrrAmtlZTkL0TjslZnNOZZGsIYitZ88nOYeM6-Sfcnx3z8l8ibBQEO3sDLxiQqTZ-F1V5ZWO\" alt=\"\"\/><\/figure><\/div>\n\n\n<p><a href=\"https:\/\/vitalflux.com\/wp-content\/uploads\/2021\/12\/level-of-significance-and-hypothesis-testing-640x374.png\"><\/a><\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<h2>Signifikansniv\u00e5 Symbol<\/h2>\n\n\n\n<p>Signifikansniv\u00e5et representeres av det greske symbolet \u03b1 (alfa). Signifikansniv\u00e5 = sannsynlighetsverdi (type I-feil) = \u03b1, i dette tilfellet.<\/p>\n\n\n\n<p>N\u00e5r verdier eller observasjoner avviker fra gjennomsnittet, er de mindre sannsynlige. Funnene betegnes som \"signifikant ved x%\".&nbsp;<\/p>\n\n\n\n<p>For eksempel angir verdien signifikant ved 5% en p-verdi mindre enn 0,05 eller p &lt; 0,05. Tilsvarende angir signifikant ved 1% en p-verdi mindre enn 0,01.<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter\"><img decoding=\"async\" src=\"https:\/\/lh3.googleusercontent.com\/Nu7ehiMPXFW5ZnnSz0cCLEWYxtWXCJaPqZiAkyVmOqBEsswI8oiGbplV-EOOot687p54RG_Emna1bm9w3UoquwG9ROeyZll4fxEAj-yZWYRlcxLctDYozxO2x35ZOR7KBJUwUIg5_pNHkQWpHvaLjTO-fzFhSAoR3HpsFlHTR3PN55BkJLN-9o1ZSIb1\" alt=\"\"\/><\/figure><\/div>\n\n\n<p><a href=\"https:\/\/vitalflux.com\/wp-content\/uploads\/2021\/12\/level-of-significance-and-hypothesis-testing.png\"><\/a><\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-image size-large\"><a href=\"https:\/\/researcher.life\/all-access-pricing?utm_source=mtg&amp;utm_campaign=all-access-promotion&amp;utm_medium=blog\"><img decoding=\"async\" loading=\"lazy\" width=\"1024\" height=\"410\" src=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-1024x410.png\" alt=\"\" class=\"wp-image-55425\" srcset=\"https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-1024x410.png 1024w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-300x120.png 300w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-768x307.png 768w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-1536x615.png 1536w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-2048x820.png 2048w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-18x7.png 18w, https:\/\/mindthegraph.com\/blog\/wp-content\/uploads\/2024\/08\/Banner3-100x40.png 100w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/a><\/figure>\n\n\n\n<h2>Hvordan finne signifikansniv\u00e5et?<\/h2>\n\n\n\n<p>For \u00e5 bestemme signifikansniv\u00e5et for funnet ditt, m\u00e5 du f\u00f8rst bestemme p-verdien, som definerer sannsynligheten for \u00e5 oppdage en effekt som vil gi svar p\u00e5 om nullhypotesen er riktig eller ikke. Nullhypotesen forkastes hvis p-verdien er mindre enn signifikansniv\u00e5et. Hvis p-verdien er st\u00f8rre enn eller lik signifikansniv\u00e5et (\u03b1), m\u00e5 nullhypotesen aksepteres.&nbsp;<\/p>\n\n\n\n<p>F\u00f8lgende er den vanlige tolkningen av p-verdien ved et signifikansniv\u00e5 p\u00e5 10%:&nbsp;<\/p>\n\n\n\n<p>Hvis p &gt; 0,1, antas ikke nullhypotesen.&nbsp;<\/p>\n\n\n\n<p>Hvis p &gt; 0,05 og p \u2264 0,1, lav antagelse av nullhypotesen.<\/p>\n\n\n\n<p>Hvis p &gt; 0,01 og p \u2264 0,05, sterk antagelse av nullhypotesen.<\/p>\n\n\n\n<p>Hvis p \u2264 0,01, er nullhypotesen sv\u00e6rt sterk.<\/p>\n\n\n\n<p>Bare husk at 0,05, eller 5%, er den konvensjonelle alfaverdien, og at det vanligvis kreves en overbevisende grunn for \u00e5 endre signifikansniv\u00e5et til noe annet enn 0,05.<\/p>\n\n\n\n<h2>Endring av signifikansniv\u00e5<\/h2>\n\n\n\n<p>Hvis man for eksempel \u00f8ker signifikansniv\u00e5et fra 0,05 til 0,10, reduseres beviskravet. En senkning fra 0,05 til 0,01 \u00f8ker derimot beviskravet.&nbsp;<\/p>\n\n\n\n<p>Anta at du vurderer styrken p\u00e5 festballonger for \u00e5 finne ut hvilket merke som er best. Siden et falskt positivt resultat vil f\u00f8re til at du kj\u00f8per den svakeste ballongen, er ulempene minimale. Ved \u00e5 senke signifikansniv\u00e5et til 0,10 kan du minimere mengden bevis som kreves, samtidig som du \u00f8ker muligheten for et falskt positivt resultat fra 0,05 til 0,10.&nbsp;<\/p>\n\n\n\n<p>Hvis du derimot skal vurdere styrken p\u00e5 duken som brukes i varmluftsballonger, er en falsk positiv test ekstremt farlig, siden det kan f\u00f8re til d\u00f8dsfall. Du m\u00e5 v\u00e6re sv\u00e6rt forsiktig og velge den beste produsenten. I dette scenariet er det \u00e5 foretrekke \u00e5 \u00f8ke signifikansniv\u00e5et til 0,01 i stedet for \u00e5 senke det. Dette reduserer sannsynligheten for en falsk positiv som varierer fra 0,05 til 0,01.&nbsp;<\/p>\n\n\n\n<h2>Ingenting kan sl\u00e5 et feilfritt visuelt virkemiddel som formidler et komplekst budskap<\/h2>\n\n\n\n<p>Har du problemer med \u00e5 kommunisere en stor mengde informasjon? Bruk infografikk og illustrasjoner for \u00e5 gj\u00f8re arbeidet ditt mer forst\u00e5elig og tilgjengelig. <a href=\"https:\/\/mindthegraph.com\/?utm_source=blog&amp;utm_medium=content\" target=\"_blank\" rel=\"noreferrer noopener\">Mind the Graph<\/a> er et utmerket verkt\u00f8y for forskere som \u00f8nsker \u00e5 effektivisere arbeidet sitt ved hjelp av visuelt attraktiv infografikk.&nbsp;<\/p>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<figure class=\"wp-block-embed aligncenter is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Tutorial | Hvordan lage en attraktiv infografikk p\u00e5 Mind the Graph\" width=\"800\" height=\"450\" src=\"https:\/\/www.youtube.com\/embed\/l5mns4d9fyA?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<div style=\"height:18px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>\n\n\n\n<div class=\"is-layout-flex wp-block-buttons\">\n<div class=\"wp-block-button aligncenter\"><a class=\"wp-block-button__link has-background wp-element-button\" href=\"https:\/\/mindthegraph.com\/\" style=\"border-radius:50px;background-color:#dc1866\" target=\"_blank\" rel=\"noreferrer noopener\">\u00d8ke forskningen min med illustrasjoner<\/a><\/div>\n<\/div>\n\n\n\n<div style=\"height:44px\" aria-hidden=\"true\" class=\"wp-block-spacer\"><\/div>","protected":false},"excerpt":{"rendered":"<p>I denne artikkelen gir vi deg en oversikt over signifikansniv\u00e5et slik at du enkelt kan forst\u00e5 dets funksjonalitet og betydning.<\/p>","protected":false},"author":28,"featured_media":26295,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":[],"categories":[959,28],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v19.9 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>An Easy-To-Understand Summary Of Significance Level<\/title>\n<meta name=\"description\" content=\"In this article, we give you an overview of the significance level so you can easily understand its functionality and importance.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/mindthegraph.com\/blog\/nb\/signifikansniva\/\" \/>\n<meta property=\"og:locale\" content=\"nb_NO\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"An Easy-To-Understand Summary Of Significance Level\" \/>\n<meta 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