Table 4. Simulation results for coverage of 90% prediction intervals.

	LM	SLM	RF	RFRK
1	0.897	0.893	0.869	0.892
2	0.901	0.894	0.874	0.897
3	0.916	0.914	0.914	0.897
4	0.914	0.917	0.916	0.894
5	0.897	0.892	0.866	0.892
6	0.903	0.894	0.869	0.894
7	0.900	0.899	0.959	0.899
8	0.899	0.907	0.955	0.905

The first column indicates the different cases, which are summarized in Table 3. Values were averaged over 20 independent simulation runs.