```xml <result> <column_name>Upper Confidence Interval</column_name> <family>additive</family> <subtype>intensive_additive</subtype> <confidence>0.92</confidence> <requires_user_confirmation>false</requires_user_confirmation> <sum_meaningful>false</sum_meaningful> <signed>false</signed> <reducers> <primary_reducer>max</primary_reducer> <valid_reducers>max, mean, median, min</valid_reducers> <excluded_reducers>sum (summing confidence interval bounds is meaningless), product (not a ratio)</excluded_reducers> <average_semantics>arithmetic_mean</average_semantics> </reducers> <inner_outer_measure> <inner_measure_reducer>min</inner_measure_reducer> <outer_measure_reducer>max</outer_measure_reducer> </inner_outer_measure> <multiplicative_partner_derivable>false</multiplicative_partner_derivable> <reasoning> Table-type gate: DIMENSION with no sequence axis makes multiplicative highly implausible. The column name "Upper Confidence Interval" indicates a statistical bound - an absolute level, not a ratio. Values range [3.078, 7.669] with mean 5.48, centered far from both 0.0 and 1.0, consistent with an intensive quantity. No zeros or negatives; strictly positive bounded range. Summing upper confidence bounds across entities is statistically meaningless; the natural rollup is max (most conservative bound) or mean (average uncertainty). Classified as intensive_additive with max as primary reducer. </reasoning> <table_type_conflict>false</table_type_conflict> </result> ```