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Table 4 Degree of concentration of expert opinions

From: Model construction of medical endoscope service evaluation system-based on the analysis of Delphi method

Indicators M K Q + -Q- extreme value difference
1.3 Technical solutions 4.429 0.524 2 ≤2
2.4 Device installation 4.857 0.857 1 ≤2
3.1 Maintenance system 4.571 0.619 2 ≤2
3.7 Maintenance response 4.810 0.810 1 ≤2
3.16 Maintenance quality 4.619 0.476 1 ≤2
3.3 Complaint handling 4.048 0.333 4 > 2