{"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\/lt\/reiksmingumo-lygis\/","title":{"rendered":"Lengvai suprantama reik\u0161mingumo lygio santrauka"},"content":{"rendered":"<p>Statistikoje reik\u0161mingumo lygiai yra svarbi hipotezi\u0173 tikrinimo dalis. Be to, prie\u0161ingai nei kiti statistini\u0173 duomen\u0173 skai\u010diai, statistin\u0117s analiz\u0117s programin\u0117 \u012franga reik\u0161mingumo lygio neskai\u010diuoja. Vietoj to reik\u0161mingumo lyg\u012f pasirenkate j\u016bs. Ar kada nors klaus\u0117te, kod\u0117l taip yra?&nbsp;<\/p>\n\n\n\n<p>\u0160iame straipsnyje \"Mind The Graph\" ap\u017evelgs reik\u0161mingumo lyg\u012f, kad gal\u0117tum\u0117te lengvai suprasti jo funkcionalum\u0105 ir svarb\u0105.<\/p>\n\n\n\n<h2>Koks yra reik\u0161mingumo lygis?<\/h2>\n\n\n\n<p>Reik\u0161mingumo lygmuo, dar vadinamas alfa arba \u03b1, yra matas, kuris nurodo, kiek \u012frodym\u0173 turi b\u016bti \u012frodyta imtyje, kad b\u016bt\u0173 atmesta nulin\u0117 hipotez\u0117 ir poveikis b\u016bt\u0173 pripa\u017eintas statisti\u0161kai reik\u0161mingu. Dar prie\u0161 prad\u0117dami eksperiment\u0105 turite pasirinkti reik\u0161mingumo lygmen\u012f.&nbsp;<\/p>\n\n\n\n<p>Kitaip tariant, tai tikimyb\u0117 atmesti nulin\u0119 hipotez\u0119, kai ji yra teisinga; pavyzd\u017eiui, reik\u0161mingumo lygmuo 0,05 rei\u0161kia 5% tikimyb\u0119 nuspr\u0119sti, kad skirtumas egzistuoja, nors jo n\u0117ra. Ma\u017eesni reik\u0161mingumo lygiai rodo, kad reikia daugiau \u012frodym\u0173 nulinei hipotezei atmesti.<\/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>Reik\u0161mingumo lygis Simbolis<\/h2>\n\n\n\n<p>Reik\u0161mingumo lygmuo \u017eymimas graiki\u0161ku simboliu \u03b1 (alfa). Reik\u0161mingumo lygis = tikimyb\u0117s reik\u0161m\u0117 (I tipo klaida) = \u03b1, \u0161iuo atveju.<\/p>\n\n\n\n<p>Kai reik\u0161m\u0117s ar steb\u0117jimai nukrypsta nuo vidurkio, jie yra ma\u017eiau tik\u0117tini. Rezultatai \u017eymimi kaip \"reik\u0161mingi x%\".&nbsp;<\/p>\n\n\n\n<p>Pavyzd\u017eiui, reik\u0161m\u0117 reik\u0161minga ties 5% rei\u0161kia, kad p reik\u0161m\u0117 ma\u017eesn\u0117 nei 0,05 arba p &lt; 0,05. Pana\u0161iai reik\u0161m\u0117 reik\u0161minga esant 1% rei\u0161kia p reik\u0161m\u0119, ma\u017eesn\u0119 nei 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>Kaip nustatyti reik\u0161mingumo lyg\u012f?<\/h2>\n\n\n\n<p>Nor\u0117dami nustatyti savo i\u0161vados reik\u0161mingumo lyg\u012f, pirmiausia nustatykite p reik\u0161m\u0119, kuri apibr\u0117\u017eia tikimyb\u0119 aptikti poveik\u012f, kuris atsakys \u012f klausim\u0105, ar nulin\u0117 hipotez\u0117 yra teisinga, ar ne. Nulin\u0117 hipotez\u0117 atmetama, jei p reik\u0161m\u0117 yra ma\u017eesn\u0117 u\u017e reik\u0161mingumo lygmen\u012f. Jei p reik\u0161m\u0117 yra didesn\u0117 arba lygi reik\u0161mingumo lygiui (\u03b1), nulin\u0117 hipotez\u0117 turi b\u016bti priimta.&nbsp;<\/p>\n\n\n\n<p>Toliau pateikiamas \u012fprastas p reik\u0161m\u0117s ai\u0161kinimas, kai reik\u0161mingumo lygmuo yra 10%:&nbsp;<\/p>\n\n\n\n<p>Jei p &gt; 0,1, nulin\u0117 hipotez\u0117 nepriimama.&nbsp;<\/p>\n\n\n\n<p>Jei p &gt; 0,05 ir p \u2264 0,1, nulin\u0117s hipotez\u0117s prielaida \u017eema.<\/p>\n\n\n\n<p>Jei p &gt; 0,01 ir p \u2264 0,05, tai stipri nulin\u0117s hipotez\u0117s prielaida.<\/p>\n\n\n\n<p>Jei p \u2264 0,01, labai stipri nulin\u0117s hipotez\u0117s prielaida.<\/p>\n\n\n\n<p>Tik nepamir\u0161kite, kad 0,05 arba 5% yra \u012fprastin\u0117 alfa reik\u0161m\u0117, o norint pakeisti reik\u0161mingumo lygmen\u012f \u012f kitok\u012f nei 0,05, paprastai reikia \u012ftikinam\u0173 prie\u017eas\u010di\u0173.<\/p>\n\n\n\n<h2>Reik\u0161mingumo lygio keitimas<\/h2>\n\n\n\n<p>Pavyzd\u017eiui, padidinus reik\u0161mingumo lygmen\u012f nuo 0,05 iki 0,10, suma\u017e\u0117ja \u012frodin\u0117jimo standartas. Prie\u0161ingai, j\u012f suma\u017einus nuo 0,05 iki 0,01, standartas padid\u0117ja.&nbsp;<\/p>\n\n\n\n<p>Tarkime, kad vertinate vakar\u0117li\u0173 balion\u0173 stiprum\u0105, nor\u0117dami nustatyti, kuris prek\u0117s \u017eenklas yra geriausias. Kadangi d\u0117l klaidingai teigiamo rezultato \u012fsigysite silpnesn\u012f balion\u0105, tr\u016bkumai yra minimal\u016bs. Suma\u017eindami reik\u0161mingumo lygmen\u012f iki 0,10, galite suma\u017einti reikaling\u0173 \u012frodym\u0173 kiek\u012f, o klaidingai teigiamo rezultato tikimyb\u0119 padidinti nuo 0,05 iki 0,10.&nbsp;<\/p>\n\n\n\n<p>Kita vertus, jei vertinate oro balionuose naudojamo audinio tvirtum\u0105, klaidingas teigiamas rezultatas yra labai pavojingas, nes gali baigtis mirtimi. Turite b\u016bti labai atsarg\u016bs ir pasirinkti geriausi\u0105 gamintoj\u0105. \u0160iuo atveju geriau padidinti, o ne suma\u017einti reik\u0161mingumo lygmen\u012f iki 0,01. Taip suma\u017einama klaidingai teigiamo rezultato tikimyb\u0117 nuo 0,05 iki 0,01.&nbsp;<\/p>\n\n\n\n<h2>Niekas negali pranokti nepriekai\u0161tingo vizualinio k\u016brinio, kuriuo perduodama sud\u0117tinga \u017einut\u0117<\/h2>\n\n\n\n<p>Sunkiai perduodate didel\u012f kiek\u012f informacijos? Naudokite infografik\u0105 ir iliustracijas, kad darbas b\u016bt\u0173 suprantamesnis ir prieinamesnis. <a href=\"https:\/\/mindthegraph.com\/?utm_source=blog&amp;utm_medium=content\" target=\"_blank\" rel=\"noreferrer noopener\">Mind the Graph<\/a> yra puikus \u012frankis tyr\u0117jams, norintiems savo darb\u0105 padaryti efektyvesn\u012f naudojant vizualiai patrauklias infografikas.&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=\"Pamoka | Patrauklios infografikos k\u016brimas 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\">Iliustracijomis pagausinkite mano tyrimus<\/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>\u0160iame straipsnyje ap\u017evelgsime reik\u0161mingumo lyg\u012f, kad gal\u0117tum\u0117te lengvai suprasti jo funkcijas ir svarb\u0105.<\/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\/lt\/reiksmingumo-lygis\/\" \/>\n<meta property=\"og:locale\" content=\"lt_LT\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"An Easy-To-Understand Summary Of Significance Level\" 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