Advanced Micro Devices develops high$-$performing computing products. Assume one of its microprocessors has a standard labor time of $0\mathrm{.}25$ hour and a standard labor rate of $$20$ per hour. During February, the following activities pertaining to direct labor for the microprocessor were recorded:Direct labor hours used $64,000$

Direct labor cost $$1,248,000$

Units of the microprocessor manufactured $250,000$

$($a$)$ Determine the labor rate variance.

$Answer $1$

$0$

Answer $2$

$($b$)$ Determine the labor efficiency variance.

$Answer $3$

$0$

Answer $4$

$($c$)$ Determine the total flexible budget labor cost variance.

$Answer $5$

$0$

Answer $6$

Direct labor hours used $64,000$

Direct labor cost $$1,248,000$

Units of the microprocessor manufactured $250,000$