{"id":4597,"date":"2026-08-11T11:50:17","date_gmt":"2026-08-11T09:50:17","guid":{"rendered":"https:\/\/ellistat.com\/?post_type=guide-dutilisateur&#038;p=4597"},"modified":"2026-08-11T11:50:17","modified_gmt":"2026-08-11T09:50:17","slug":"appendix","status":"publish","type":"guide-dutilisateur","link":"https:\/\/ellistat.com\/en\/guide-dutilisateur\/annexe\/","title":{"rendered":"Appendix"},"content":{"rendered":"<ul class=\"wp-block-list\">\n<li><strong>H0 \/ H1<\/strong>\u00a0: the null hypothesis of no difference, and its alternative.<\/li>\n\n\n\n<li><strong>p-value<\/strong>\u00a0: the probability of observing such a difference if H0 were true. If this probability is low, it casts doubt on H0.<\/li>\n\n\n\n<li><strong>Alpha risk<\/strong>\u00a0: the risk of asserting a difference that does not exist. Determined in advance, often 5 %.<\/li>\n\n\n\n<li><strong>Beta Risk<\/strong>\u00a0: risk of missing a real difference.<\/li>\n\n\n\n<li><strong>Power<\/strong>\u00a0: 1 \u2212 beta, the probability of detecting a true difference.<\/li>\n\n\n\n<li><strong>Parametric Test<\/strong>\u00a0: assumes a law; more powerful if the assumption holds.<\/li>\n\n\n\n<li><strong>Nonparametric test<\/strong>\u00a0: does not assume any law; more robust.<\/li>\n\n\n\n<li><strong>Paired data<\/strong>\u00a0: two sets of measurements taken on the same individuals.<\/li>\n\n\n\n<li><strong>Bilateral \/ unilateral<\/strong>\u00a0: \u00abdifferent from\u00bb versus \u00abgreater than.\u00bb You decide on the meaning before looking at the data.<\/li>\n\n\n\n<li><strong>BOB \/ WOW<\/strong>\u00a0: the best and worst pieces, selected to highlight the contrast.<\/li>\n<\/ul>","protected":false},"featured_media":0,"menu_order":90,"template":"","meta":{"_acf_changed":true},"menu-guide-dutilisateur":[23],"class_list":["post-4597","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 - 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