## 4 Results
### Effect of Factors on Monitored Variables (Two-Factor ANOVA)
The results of the variance analysis are presented in Table 6.  
In the case of the thickness of the deposited layer (Y\({}_{2}\)), a significant effect is shown only in the case of factor X\({}_{1}\), i.e., the influence of the height of the measured place above the target. The value of the coefficient \(\eta^{2}\) is equal to 95.3%. This means that the thickness of the deposited layer depends, up to 95.3%, on the height of the measured place above the target. On the other hand, the influence of the tube radius on the thickness of the deposited layer was not demonstrated (\(p\)-value \(\geq\alpha\)). The results of the analysis show that there is a demonstrable influence of both factors on adhesion in the direction (Y\({}_{3}\)) and, respectively, in the opposite direction of grain growth (Y\({}_{4}\)). The influence of the height of the measured spot above the target on adhesion expressed by the coefficient \(\eta^{2}\) is very similar (28.3%--in the direction of grain growth, 29.8%--against the direction of grain growth). It is similar in the case of the influence of the tube radius on adhesion (40.4%--in the direction of grain growth, 42.6%--against the direction of grain growth). The results of the testing did not show a statistically significant effect of the height of the measured place above the target and the radius of the tube on the variable Y\({}_{5}\), i.e., the \begin{table}
\begin{tabular}{l c c c c} \hline \hline
**Parameter** & **Factor** & **Effect** & \(p\)**-Value** & **Statistical Significance of** \\  & & & & **the Factor** \\ \hline Angle of grain growth & Factor X\({}_{1}\) & 62.5\% & 4.3 \(\times\) 10\({}^{-12}\) & Significant \\ (Y\({}_{1}\)) & Factor X\({}_{2}\) & 35.6\% & 3.2 \(\times\) 10\({}^{-10}\) & Significant \\ \hline Thickness of the deposited layer & Factor X\({}_{1}\) & 95.3\% & 1.3 \(\times\) 10\({}^{-11}\) & Significant \\ (Y\({}_{2}\)) & Factor X\({}_{2}\) & 1.5\% & 0.183 & Non-significant \\ \hline Adhesion in the direction of grain growth & Factor X\({}_{1}\) & 28.3\% & 0.028 & Significant \\ (Y\({}_{3}\)) & Factor X\({}_{2}\) & 40.4\% & 0.007 & Significant \\ \hline Adhesion against the direction of grain growth & Factor X\({}_{1}\) & 29.8 & 0.015 & Significant \\ (Y\({}_{4}\)) & Factor X\({}_{2}\) & 42.6 & 0.003 & Significant \\ \hline Roughness of the deposited layer & Factor X1 & 18.6\% & 0.415 & Non-significant \\ (Y\({}_{5}\)) & Factor X2 & 10.4\% & 0.676 & Non-significant \\ \hline \hline \end{tabular}
\end{table} 
Table 6: The result of the ANOVA method (\(\alpha\) = 0.05). \begin{table}
\begin{tabular}{l c c c c c} \hline \hline
**Source of Variation** & **SS** & **df** & **MS** & **F** & \(p\)**-Value** & **F Crit** \\ \hline Rows (X\({}_{1}\)) & 511.06 & 4 & 127.765 & 134.1365 & 4.33 \(\times\) 10\({}^{-12}\) & 3.006917 \\ Columns (X\({}_{2}\)) & 291.16 & 4 & 72.79 & 76.41995 & 3.22 \(\times\) 10\({}^{-10}\) & 3.006917 \\ Error & 15.24 & 16 & 0.9525 & & & \\ Total & 817.46 & 24 & & & \\ \hline \end{tabular}
\end{table} 
Table 5: The result of the ANOVA method (\(\alpha\) = 0.05)—grain growth angle. roughness of the deposited layer (\(p\)-values are in both cases greater than or equal to the level of significance \(\alpha\)).