try this in Dashboard sheet cell C17 and drag over and down.
=AVERAGEIFS(INDEX('Data Sheet With CIQ Formulas'!$JE$7:$JS$341,,MATCH(Dashboard!$C$15,'Data Sheet With CIQ Formulas'!$JE$6:$JS$6,0)),'Data Sheet With CIQ Formulas'!$H$7:$H$341,Dashboard!$B17,'Data Sheet With CIQ Formulas'!$JX$7:$JX$341,Dashboard!C$16)