Sheppard Inc. has provided the following data concerning one of the products in its standard cost system. Variable manufacturing

overhead is applied to products on the basis of direct labor$-$hours.

The company has reported the following actual results for the product for April:

Required:

a$.$ Compute the materials price variance for April.

b$.$ Compute the materials quantity variance for April.

c$.$ Compute the labor rate variance for April.

d$.$ Compute the labor efficiency variance for April.

e$.$ Compute the variable overhead rate variance for April.

f$.$ Compute the variable overhead efficiency variance for April.

$($Indicate the effect of each variance by selecting $"$F$"$ for favorable, $"$U$"$ for unfavorable, and "None" for no effect $($i$.$e$.,$ zero