(a) Compute the price and quantity variances for direct materials and direct labor. Materials price variance $ Materials quantity variance $ Labor price variance $ Labor quantity variance $ e Textbook and Media List of Accounts Save for Later Attempts: 0 of 3 used Submit Answer Hart Labs, Inc. provides mad cow disease testing for both state and federal governmental agricultural agencies. Because the company's customers are governmental agencies, prices are strictly regulated. Therefore, Hart Labs must constantly monitor and control its testing costs. Shown below are the standard costs for a typical test. Direct materials (2 test tubes @ $1.60 per tube) $3.20 Direct labor (1 hour @ $31 per hour) 31.00 Variable overhead (1 hour @ $6.00 per hour) 6.00 Fixed overhead (1 hour @ $12.00 per hour) 12.00 Total standard cost per test $52.20 The lab does not maintain an inventory of test tubes. As a result, the tubes purchased each month are used that month. Actual activity for the month of November 2020, when 1,000 tests were conducted, resulted in the following. Direct materials (2,100 test tubes) $3,150 Direct labor (1,050 hours) 31,500 Variable overhead 5,760 Fixed overhead 11,420 Monthly budgeted fixed overhead is $18,000. Revenues for the month were $68,000, and selling and administrative expenses were $4,900