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: Standard HoursStandard Rateper HourStandardCost$18$ minutes $(0\mathrm{.}30$ hours$)$$$16\mathrm{.}00$$$4\mathrm{.}80$ During July, $8,050$ hours of direct labour time were recorded to make $26,000$ units. The direct labour cost totalled $$132,020$ for the month. Required:$1-$a$.$ What direct labour cost should have been incurred to make the $26,000$ speakers? $($Do not round intermediate calculations.$)$Direct labour cost$1-$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$).)$Total variance 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$).)$ Labour rate varianceLabour efficiency variance