Q1 Jazz Ltd produces product J. The standard cost per product J is given as follows: Raw materials - 3kg at $4.50 per kg Labour 4 hours at $5.00 per hour The actual cost and production for the last two months are given below: Required: (a) Material price variance (b) Material usage variance (c) Material cost variance (d) Labour rate variance (e) Labour usage variance (f) Labour cost variance