Le TEST F DE FISHER & ANOVA - Exemple & Explications - Tests Statistiques - Stats Bac Sup

Through an example, we will see how to perform Fisher's F-test. We will calculate the F-value, first manually and then using Excel. Next, after calculating the degrees of freedom, we will calculate the theoretical F-value using Fisher's table and Excel. This will allow us to reject H0 by comparing the theoretical F-value with the calculated F-value. We will also see that we can reject H0 by comparing the p-value and alpha, which will lead us to discuss the concepts of p-value and alpha, which we will also calculate using Excel. Finally, we will examine the strength of the relationship, which we will calculate and then interpret. Finally, we will interpret our between-class and within-class SCE data, asking ourselves, based on our data, what type of city each of the studied cities is. We'll see that one is more likely to be a commuter town with only supermarkets, another more likely to be a town with varying degrees of wealth, and yet another more likely to be a tourist town. In this video: 0:00 Intro & presentation 0:54 Why use the Fisher test? 1:29 Conditions 2:11 Hypotheses 2:50 Calculation of F 3:18 Degrees of Freedom 4:25 Calculation of F 5:16 Theoretical F: Table 7:59 Comparison of Calculated F / Theoretical F 9:11 Curve 9:55 Comparison of p-value / alpha 11:38 Strength of the Relationship 13:02 Interpretation 14:18 Excel: Presentation 14:53 Calculated F in Excel 15:29 Theoretical F in Excel 18:02 p-value in Excel 19:20 Strength in Excel 20:00 Overall Interpretation 22:04 Summary & Conclusion We will answer the following questions: How to find a theoretical F in a Fisher-Snedecor table? What is the Fisher-Snedecor table used for? Why is the Fisher table called the Fisher-Snedecor table? What is the difference between the F-distributions in Excel? (=F.DIST / =F.LINE / =F.INV / =F.LINE) How do I find the theoretical F-value using Excel? How do I reject the null hypothesis? How do I compare the F-values ​​to reject or accept the null hypothesis? What is the p-value? What is alpha? How do I find the p-value in the Fisher-Snedecor table? How do I find the p-value using Excel? What is the relationship between the theoretical F-value, the calculated F-value, the p-value, and alpha? How do I calculate the strength of the relationship using analysis of variance (ANOVA)? How do I interpret the strength of the relationship? I'm trying to explain it clearly :) … in 4K 😝 Stats - Post-Baccalaureate (Preparatory Classes/Bachelor's Degree/University Institute of Technology/Advanced Vocational Training Certificate/Master's Degree, 1st, 2nd, 3rd, 4th, or 5th year) ---------- Link to worksheets/exercises/spreadsheets: https://fabinou.fr/fiches