John Fleming chief administrator for Valley View Hospital, is concerned about the costs for tests in the hospitals lab. Charges for lab tests are consistently higher at Valley View than at other hospitals and have resulted in many complaints. Also, because of strict regulations on amounts reimbursed for lab tests, payments received from insurance companies and governmental units have not been high enough to cover lab costs. Mr. Fleming has asked you to evaluate costs in the hospitals lab for the past month. The following information is available: a. Two types of tests are performed in the lab-blood tests and smears. During the past month, 1,800 blood tests and 2,400 smears were performed in the lab. b. Small glass plates are used in both types of tests. During the past month, the hospital purchased 12,000 plates at a cost of $56,400, 1500 of these plates were unused at the end of the month no plates were on rund at the beginning of the month During the past month, 1,150 hours of labor time were recorded in the tab at a cost of $21,850. d. The tab's variable overhead cost last month totaled 57,820. Valley View Hospital has never used standard costs. By searching industry literature, however, you have determined the following nationwide averages for hospital labs Plates. Two plates are required per lab test. These plates cost $5.00 each and are disposed or after the test is completed Labor Each blood test should require 0.3 hours to complete, and each smear should require 0.15 hours to complete. The average cost of this latime is 520 per hour Overhead: Overhead cost is based on direct labor hours. The average rate for variable overhead is so per hour Required: 1. Compute a materials price variance for the plates purchased last month and a materials quantity variance for the plates used last month 2. For labor cost in the lab: a. Compute a labor rate variance and a labor efficiency variance b. In most hospitals, one half of the workers in the lab are senior technicians and one half are assistants. In an effort to reduce costs, Valley View Hospital employs only one fourth senior technicians and three-fourths assistants. Would you recommend that this policy be continued? 3. Compute the variable overhead rate and efficiency variances 4. Is there any relation between the variable overhead efficiency variance and the labor efficiency variance