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Table 5 Paired T test for conifers and deciduous trees along the altitude

From: Altitudinal gradients of soil and vegetation carbon and nitrogen in a high altitude nature reserve of Karakoram ranges

Altitude (m) Conifer (LTN) Deciduous (LTN) Conifer (LTC) Deciduous (LTC)
3063 1.1 1.9 50.7 44.2
3177 3.2 2.2 100.2 43.4
3200 0.7 1.9 46.4 47.4
3215 3.9 2.3 145.1 48.3
3222 3.8 0.8 95.1 47.4
3230 1.6 2.3 48.7 47.5
3257 1.5 1.8 49 46.3
Total 15.8 13.2 535.2 324.5
Mean 2.26 1.89 76.46 46.36
Variance 1.79 0.27 1452.39 3.44
Observations 7 7 7 7
Pearson correlation −0.23   0.18  
Hypothesized mean difference 0   0  
df 6   6  
t Stat 0.64   2.11  
p (T ≤ t) one-tail 0.27   0.04  
t critical one-tail 1.94   1.94  
p (T ≤ t) two-tail 0.55   0.08  
t critical two-tail 2.45   2.45