Founders State Bank developed a standard for teller staffing that provided for one teller to handle 10 customers per hour. During June, the bank averaged 52 customers per hour and had seven tellers on duty at all times. (Relief tellers filled in during lunch and rest breaks.) The teller compensation cost is $13 per hour. The bank is open eight hours a day, and there were 21 working days during June.

a. Calculate the teller efficiency variance during June expressed in terms of number of tellers and cost per hour. (Do not round intermediate calculations. Round "Tellers per hour" to 2 decimal places. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance)

Efficiency variance tellers per hour _________ _________ Efficiency variance cost per hour ___________ _________

b. Now assume that in June, during the 11 A.M. to 1 P.M. period every day, the bank served an average of 75 customers per hour. During the other six hours of the day, an average of 35 customers per hour were served.

b-1. Calculate a teller efficiency variance for the 11 to 1 period expressed in terms of number of tellers per hour and total cost for the month. (Do not round intermediate calculations. Round "Tellers per hour" to 2 decimal places. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance).)

Efficiency variance tellers per hour __________ ____________ Efficiency variance cost per month ___________ __________

b-2. Calculate a teller efficiency variance for the other six hours of the day expressed in terms of number of tellers per hour and total cost for the month. (Do not round intermediate calculations. Round "Tellers per hour" to 2 decimal places. Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance).)

Efficiency variance tellers per hour____________ _____________ Efficiency variance cost per month_____________ ______________