Sweetwater Company manufactures two products, Mountain Mist and Valley Stream. The company prepares its master budget on the basis of standard costs. The following data are for March:

Standards		Mountain Mist		Valley Stream
Direct materials		3 ounces at $14.40 per ounce		4 ounces at $17.40 per ounce
Direct labor		5 hours at $60.60 per hour		6 hours at $82 per hour
Variable overhead (per direct labor-hour)		$48		$53.60
Fixed overhead (per month)		$367,164		$399,360
Expected activity (direct labor-hours)		6,580		7,800
Actual results
Direct material (purchased and used)		4,200 ounces at $13.60 per ounce		4,700 ounces at $20.00 per ounce
Direct labor		5,010 hours at $63.50 per hour		7,520 hours at $86.60 per hour
Variable overhead		$269,550		$389,510
Fixed overhead		$327,950		$399,500
Units produced (actual)		1,110 units		1,210 units

a. Compute a variance analysis for each variable cost for each product. (Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select either option.)

b. Compute a fixed overhead variance analysis for each product. (Do not round intermediate calculations. Indicate the effect of each variance by selecting "F" for favorable, or "U" for unfavorable. If there is no effect, do not select either option.)