average ked over is $7 per Inese rates are based on a denominator activity level of 1,250 hours per month. Required: 1. Compute the materials price variance for the plates purchased last month, and compute a materials quantity variance for the plates used last month. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance).) 2-a. Compute a labour rate variance and a labour efficiency variance for the lab. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Do not round intermediate calculation and round your final answers to 1 decimal place.) 2-b. Not available in Connect. 3-a. Compute the variable overhead spending and efficiency variances. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance).) 3-b. Not available in Connect. 4. Compute the fixed overhead budget and volume variances. (Indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance).)