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. 2018 Nov 22;11(12):2345. doi: 10.3390/ma11122345

Table 1.

Group Tests and tests for Independent Samples showed a statistically significant difference between the two groups in terms of lacunarity (p < 0.05). Student’s t test for unpaired data and Levene’s Test were performed to verify the significance of the difference between groups.

Group Members Group N Mean (St. Dev) St. Error
A Steel 10 1.8736 (0.08767) 0.02772
B Silver Coated 10 1.2630 (0.05034) 0.01592
Statistical Analysis Levene’s Test Used to Assess the Equality of Variances t-test Used for Comparison of Means
F Sig. t df Sig. (2-code) Difference between means Difference Standard error a 95% confidence interval
Inferior Superior
Equal variances 2.149 0.160 19.099 18 0.000 0.61060 0.03197 0.54343 0.67777
Non-equal variances 19.099 14.353 0.000 0.61060 0.03197 0.54219 0.67901