# Simultaneous Use of Digital Technologies and Industrial Robots in Manufacturing Firms
## 4 Results and Discussion
### Statistical Tests
\begin{table}
\begin{tabular}{c c c c c c c c} \hline \hline
**Technology** & **Statistic** & **R1** & **R2** & **R3** & **R4** & **R5** \\ \hline \multirow{4}{*}{T1} & Sig. & & **0.009** & **0.001** & 0.428 & 0.160 & 0.359 \\ \cline{2-8}  & Exp(B) & & **2.836** & **4.744** & 2.457 & 2.333 & 1.576 \\ \cline{2-8}  & \multirow{2}{*}{95\% CI} & LB & 1.304 & 1.876 & 0.266 & 0.716 & 0.596 \\ \cline{2-8}  & & UB & 6.168 & 11.997 & 22.714 & 7.601 & 4.169 \\ \hline \multirow{4}{*}{T2} & Sig. & & **0.014** & **0.002** & 0.977 & **0.006** & 0.186 \\ \cline{2-8}  & Exp(B) & & **3.575** & **4.722** & 1.034 & **4.533** & 2.007 \\ \cline{2-8}  & \multirow{2}{*}{95\% CI} & LB & 1.296 & 1.796 & 0.110 & 1.540 & 0.716 \\ \cline{2-8}  & & UB & 9.865 & 12.419 & 9.716 & 13.344 & 5.631 \\ \hline \multirow{4}{*}{T3} & Sig. & & **0.018** & **0.001** & 0.227 & 0.173 & 0.238 \\ \cline{2-8}  & Exp(B) & & **2.453** & **5.186** & 3.930 & 2.082 & 1.739 \\ \cline{2-8}  & \multirow{2}{*}{95\% CI} & LB & 1.170 & 2.222 & 0.426 & 0.724 & 0.693 \\ \cline{2-8}  & & UB & 5.143 & 12.105 & 36.260 & 5.981 & 4.364 \\ \hline \multirow{4}{*}{T4} & Sig. & & 0.189 & **0.005** & 0.373 & 0.341 & 0.502 \\ \cline{2-8}  & Exp(B) & & 1.645 & **3.072** & 0.364 & 1.632 & 1.363 \\ \cline{2-8}  & \multirow{2}{*}{95\% CI} & LB & 0.782 & 1.404 & 0.039 & 0.595 & 0.552 \\ \cline{2-8}  & & UB & 3.461 & 6.722 & 3.363 & 4.472 & 3.367 \\ \hline \multirow{4}{*}{T5} & Sig. & & **0.003** & **<0.001** & 0.282 & **0.04** & 0.233 \\ \cline{2-8}  & \multirow{2}{*}{Exp(B)} & & **5.130** & **6.703** & 2.758 & **3.107** & 1.865 \\ \cline{2-8}  & & LB & 1.766 & 2.486 & 0.434 & 1.053 & 0.669 \\ \cline{2-8}  & & UB & 14.905 & 18.075 & 17.517 & 9.165 & 5.198 \\ \hline \multirow{4}{*}{T6} & Sig. & & **0.002** & **0.009** & 0.197 & 0.085 & 0.894 \\ \cline{2-8}  & Exp(B) & & **3.682** & **2.929** & 3.343 & 2.448 & 1.067 \\ \cline{2-8}  & \multirow{2}{*}{95\% CI} & LB & 1.603 & 1.311 & 0.535 & 0.883 & 0.411 \\ \cline{2-8}  & & UB & 8.457 & 6.545 & 20.903 & 6.789 & 2.767 \\ \hline \multirow{4}{*}{T7} & Sig. & & 0.066 & **0.006** & 0.266 & **0.013** & 0.073 \\ \cline{2-8}  & Exp(B) & & 1.993 & **3.088** & 3.533 & **5.204** & 2.429 \\ \cline{2-8}  & \multirow{2}{*}{95\% CI} & LB & 0.955 & 1.377 & 0.383 & 1.418 & 0.922 \\ \cline{2-8}  & & UB & 4.158 & 6.927 & 32.605 & 19.098 & 6.398 \\ \hline \hline \end{tabular}
\end{table} 
Table 5: Logistic regression results for technologies and types of robots. Readiness levels are also correlated with the use of industrial robots for manufacturing processes but not with the other types of robots. After modeling relationships with the help of logistic regression between individual digital technologies and types of industrial robots, the same procedure was applied to analyze Industry 4.0 readiness levels and industrial robots. Since readiness level is a categorical variable, it had to be specified as such in SPSS, and a reference category had to be chosen. For each combination of readiness levels and a type of industrial robot, the logistic regression was conducted twice, once with Level 0 as the reference category and once with Level 5 as the reference category. The results of the logistic regression were compared to the reference category and had to be interpreted in the same way. In the first iteration of predicting different types of robots with readiness levels, it was found that Level 5 was the most significant level for predicting the use of industrial robots compared to firms in Level 0 (Table 7). In comparison with the reference category, the firms that are considered to be in the top level of readiness (Level 5) are 16.3 times more likely to use industrial robots for manufacturing processes and 82.3 times more likely to use industrial robots for handling processes than firms that are in Level 0. For industrial robots for manufacturing processes, no other level of readiness was significant in predicting the use of such robots.