* Question 1.15 Which of the following would produce an unfavorable labor rate variance? O excessive number of hours worked in completing a jotb O an unfavorable variable overhead spending variance. o use of persons with high hourly wage rates in tasks that call for low hourly wage rates O poor quality materials causing breakage and work interruptions Question 1.16 Which of the following would produce an unfavorable materials quantity variance? O use of persons with high hourly wage rates in tasks that call for low hourly wage rates O poor quality raw materials that cause defective production and lower yields; O an unfavorable variable overhead spending variance O excessive number of hours worked in completing a job