Skip to main content
. 2021 Sep 13;9:e12017. doi: 10.7717/peerj.12017

Table 5. Analysis of variance (ANOVA).

(A) ANOVA test between different substrate types (Claystones, Sandstones and Limestones). (B) Tukey’s HSD (honestly significant difference) test for pairwise comparisons. (C) ANOVA test between different palaeodepth parameters (Near shore, Shallow-marine, Mid-ramp and Offshore). (D) Tukey’s HSD (honestly significant difference) test for pairwise comparisons.

a
Source SS df MS
Between-treatments 96 2 48 F= 8.57872
Within-treatments 335.7143 60 5.5952
Total 431.7143 62
b
Pairwise comparisons HSD.05= 1.7543 HSD.01= 2.2104 Q.05= 3.3987 Q.01= 4.2822
Claystones: Sandstones M1 = 0.90 M2 = 0.33 0.57 Q = 1.11 (p= .71491)
Claystones: Limestones M1 = 0.90 M3 = 3.19 2.29 Q = 4.43 (p= .00748)
Sandstones: Limestones M2 = 0.33 M3 = 3.19 2.86 Q = 5.54 (p= .00068)
c
Source of variation SS df MS
Between-treatments 28.9 3 9.6333 F= 3.32335
Within-treatments 220.3 76 2.8987
Total 249.2 79
d
Pairwise Comparisons HSD.05= 1.4143 HSD.01= 1.7333 Q.05= 3.7149 Q.01= 4.5530
T1:T2 M1= 0.35 1.65 Q = 4.33 (p= .01563)
M2= 2.00
T1:T3 M1= 0.35 0.5 Q = 1.31 (p= .78958)
M3= 0.85
T1:T4 M1= 0.35 0.85 Q = 2.23 (p= .39675)
M4= 1.20
T2:T3 M2= 2.00 1.15 Q = 3.02 (p= .15112)
M3= 0.85
T2:T4 M2= 2.00 0.8 Q = 2.10 (p= .45097)
M4= 1.20
T3:T4 M3= 0.85 0.35 Q = 0.92 (p= .91521)
M4= 1.20