Acme Inc. has the following information available on accurate price paid for material one dollar standard price for material $1.20 acro quality purchased and used in production 100 standard quantity for a unit produce 110 active labor rate per hour 15 standard labor rate for our 16 Acura hours 200 stand the hours for unit produce to 20 play compute the material prices be compute quantity see compute labor rate and D compute efficiency variance E describe the possible cause