Rule 5 Report to [ judge]; [ judge’s] powers thereon

The arbitrator to whom any cause or matter or any question or issue of fact arising therein has been referred may by his report submit any question arising out of the reference for the decision of [^f1 the judge] or state any facts specially with power to [ the judge] to draw inferences therefrom, and in any such case such order shall be made on the submission or statement as [ the judge] may direct; and [ the judge] shall have power to require any explanations or reasons from the arbitrator, and to remit the cause or matter or any part thereof for further consideration to the same or to any other arbitrator; or [ the judge] may decide the question referred to any arbitrator on the evidence taken at the hearing under such reference either with or without additional evidence as [ the judge] may direct.