Affordable Electronics Inc. manufactures medium-quality, reasonably priced wireless speakers for home use. The company uses standards to control its costs. The labour standards that have been set for one speaker are as follows: During July, 2,550 hours of direct labour time were recorded to make 12,000 units. The direct labour cost totalled $29,580 for the month. Required: 1-a. What direct labour cost should have been incurred to make the 12,000 speakers? (Do not round intermediate calculations.) 1-b. By how much does direct labour cost differ from the cost that was incurred? (Indicate the effect of variance by selecting " F " for favourable, "U" for unfavourable, and "None" for no effect (i.e., zero variance).) 2. Break down the difference in cost from requirement 1-b above into a labour rate variance and a labour efficiency variance. (Indicate the effect of each variance by selecting "F" for favourable, " U " for unfavourable, and "None" for no effect (i.e., zero variance).) 3. The budgeted variable manufacturing overhead rate is $5.00 per direct labour-hour. During July, the company incurred $10,965 in variable manufacturing overhead cost. Compute the variable overhead spending and efficiency variances for the month. (Indicate the effect of each variance by selecting "F" for favourable, " U " for unfavourable, and "None" for no effect (i.e., zero variance).)