Fatal Inc.manufactures parachutes.Fixed and variable manufacturing cost pools are allocated to each parachute using budgeted assembly hours.Budgeted assembly time is 4 hours per unit.The following table presents the amounts for July. 
Required:
a.Calculate the efficiency variance for variable overhead costs.
b.Calculate the rate variance for variable overhead costs.
c.Calculate the rate variance for fixed overhead costs.
d.Calculate the production-volume variance for fixed overhead costs.
Definitions:
Scrotum
The external sac of skin that encloses the testes in males, regulating their temperature for sperm production.
Zygote
The initial cell formed when a sperm cell and an ovum (egg cell) merge at conception, representing the earliest stage of a developing organism.
Secondary Oocyte
A cell resulting from the first division of meiosis in oogenesis, which will become an ovum after the second meiotic division if fertilization occurs.
Q14: The factor used to convert from one
Q23: Under IAS 40 (Investment Property), gains or
Q27: Under U.S. GAAP, fixed assets are generally
Q28: Ferry Company has gathered the following information:<br>
Q28: Product-sustaining (service-sustaining)costs are the costs of resources
Q47: Which of the following is an example
Q60: The budgeted fixed overhead rate per output
Q67: Waddell Productions uses a standard cost system
Q98: Decreasing demand for a product may create
Q125: A production budget expressed in units is