Table 2 P values obtained by t-tests to examine the confidence of the grouping of the bridges along the East Royal Road based on magnetic susceptibility and chemical compositions of laterite blocks
Groups A and B | Groups B and C | Groups C and D | Groups D and E | |
|---|---|---|---|---|
Magnetic susceptibility | 3.06 × 10−25 | 4.05 × 10−33 | 2.65 × 10−18 | 1.52 × 10−34 |
Y content | 4.61 × 10−6 | 7.11 × 10−20 | 1.55 × 10−19 | 3.76 × 10−12 |
Sr content | 6.96 × 10−4 | 2.10 × 10−6 | 2.14 × 10−15 | 8.04 × 10−33 |
V content | 0.136 | 0.0151 | 5.29 × 10−6 | 2.26 × 10−16 |