ratio of how good the model is comp

ratio of how good the model is compared to how bad it is (its error).
I have just explained how ANOVA can be represented as a regression equation, and this
should help you to understand what the F-ratio tells you about your data. Figure 10.2 shows
the Viagra data in graphical form (including the group means, the overall mean and the difference
between each case and the group mean). In this example, there were three groups;
therefore, we want to test the hypothesis that the means of three groups are different (so, the
null hypothesis is that the group means are the same). If the group means were all the same,
then we would not expect the placebo group to differ from the low-dose group or the highdose
group, and we would not expect the low-dose group to differ from the high-dose group.
Therefore, on the diagram, the three coloured lines would be in the same vertical position
(the exact position would be the grand mean – the dashed line in the figure). We can see from
the diagram that the group means are actually different because the coloured lines (the group
means) are in different vertical positions. We have just found out that in the regression model,
b2 represents the difference between the means of the placebo and the high-dose group, and
b1 represents the difference in means between the low-dose and placebo groups. These two
distances are represented in Figure 10.2 by the vertical arrows. If the null hypothesis is true

Hasil (Bahasa Indonesia) 1:

rasio seberapa baik model dibandingkan dengan seberapa buruk itu adalah (dengan kesalahan).Aku hanya menjelaskan bagaimana ANOVA dapat diwakili sebagai persamaan regresi, dan iniakan membantu Anda memahami apa F-rasio memberitahu Anda tentang data Anda. Angka 10.2 menunjukkanViagra data dalam bentuk grafik (termasuk sarana grup, berarti keseluruhan dan perbedaanantara setiap kasus dan berarti kelompok). Dalam contoh ini, ada tiga kelompok;oleh karena itu, kami ingin menguji hipotesis bahwa sarana tiga kelompok berbeda (Jadi,hipotesis null adalah bahwa sarana grup yang sama). Jika berarti kelompok itu semua sama,kemudian kita tidak berharap kumpulan plasebo berbeda dari kelompok dosis rendah atau highdosekelompok, dan kami tidak akan mengharapkan kelompok dosis rendah berbeda dari kelompok dosis tinggi.Oleh karena itu, pada diagram, tiga garis berwarna akan berada dalam posisi vertikal yang sama(posisi yang tepat akan berarti grand – garis putus-putus pada gambar). Kita bisa melihat daridiagram yang berarti kelompok benar-benar berbeda karena berwarna garis (kelompokberarti) berada di posisi vertikal yang berbeda. Kami baru saja menemukan bahwa dalam model regresi,B2 mewakili perbedaan antara sarana plasebo dan kelompok dosis tinggi, danB1 mewakili perbedaan berarti antara kumpulan dosis rendah dan plasebo. Keduajarak diwakili dalam angka 10.2 oleh panah vertikal. Jika hipotesis null benar