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. 2024 Jan 17;17(2):443. doi: 10.3390/ma17020443

Table A6.

t-Test: two samples with different variances, comparison between their s values, part 1.

S75F75L5 S100F75L5 S75F75L15 S100F75L15 S75F100L5 S100F100L5 S75F100L15 S100F100L15 S75F150L5 S100F150L5 S75F150L15 S100F150L15
Mean 0.372 0.483 0.670 0.708 0.448 0.578 0.631 0.859 0.502 0.605 0.533 0.827
Variance 0.005 0.004 0.000 0.002 0.000 0.003 0.002 0.001 0.002 0.007 0.003 0.001
Observations 5 5 5 5 5 5 5 5 5 5 5 5
Hypothesised Mean
Difference
0 0 0 0 0 0
df 8 5 5 8 6 6
t Stat −2.739 −1.623 −4.948 −9.368 −2.369 −10.72
P(T <= t) one-tail 0.013 0.083 0.002 0.000 0.028 0.000
t critical one-tail 1.860 2.015 2.015 1.860 1.943 1.943
P(T <= t) two-tail 0.025 0.165 0.004 0.000 0.056 0.000
t critical two-tail 2.306 2.571 2.571 2.306 2.447 2.447