Table 8 Analysis of variance (ANOVA) between and within ginger samples at 95% confidence level
From: Levels of essential and non-essential metals in ginger (Zingiber officinale) cultivated in Ethiopia
Metal | Comparision | SD | df | F calculated | F critical | Remark |
|---|---|---|---|---|---|---|
Ca | Between samples | 255 | 3 | 4.96 | 4.07 | Significant difference between sample means |
Within samples | 51.4 | 8 | ||||
Mg | Between samples | 650 | 3 | 14.2 | 4.07 | Significant difference between sample means |
Within samples | 45.6 | 8 | ||||
Cu | Between samples | 1.58 | 3 | 8.32 | 4.07 | Significant difference between sample means |
Within samples | 0.19 | 8 | ||||
Zn | Between samples | 9.96 | 3 | 5.89 | 4.07 | Significant difference between sample means |
Within samples | 1.69 | 8 | ||||
Mn | Between samples | 100 | 3 | 13.8 | 4.07 | Significant difference between sample means |
Within samples | 7.27 | 8 | ||||
Ni | Between samples | 1.38 | 3 | 3.14 | 4.07 | No significant difference between sample means |
Within samples | 0.44 | 8 | ||||
Fe | Between samples | 21.7 | 3 | 5.09 | 4.07 | Significant difference between sample means |
Within samples | 4.28 | 8 | ||||
Co | Between samples | 2.72 | 3 | 9.38 | 4.07 | Significant difference between sample means |
Within samples | 0.29 | 8 | ||||
Cr | Between samples | 2.02 | 3 | 4.93 | 4.07 | Significant difference between sample means |
Within samples | 0.41 | 8 | ||||
Cd | Between samples | 0.29 | 3 | 7.25 | 4.07 | Significant difference between sample means |
Within samples | 0.04 | 8 |