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Table 1 The Student t test of the control and coated specimen roughness Ra (μm)

From: Electro-chemical deposition of nano hydroxyapatite-zinc coating on titanium metal substrate

  Number of specimens Mean ± (SD) Standard error mean F value P value
Control 7 0.34 ± (0.06) 0.02 9.67 0.009*
HA/Zn coated 7 1.09 ± (0.16) 0.60