Defintion of "ConjunctionInference"

**Term**: `ConjunctionInference`
**Definition**: "Inference testing for the joint significance of all effects".
**Original comment**: [link](https://docs.google.com/spreadsheets/d/16pC2cDsdxlzv2CzlNMtStqt5-xHwDEsU6MjZVxWhrE4/edit?disco=AAAAAGsYjhg)
**Current link**:  [nidm-results.owl/ConjunctionInference](https://github.com/incf-nidash/nidm/blob/master/nidm/nidm-results/nidm-results.owl#L1268-L1278)

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@khelm `19:15 9 Apr`
Is this a flag that lets you know that conjunction testing has been done?
	
@JessicaTurner `20:16 21 Apr`
I'm with Karl--what Is this? Is it a map, a statistic, a bag of things?
	
@cmaumet `10:57 25 Apr`
I have just corrected the "prov:type" to "Activity". The "ConjunctionInference" activity can be used in place of the standard "Inference" activity when joint significance is required. Does it make more sense?