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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 controlits testing costs. Shown below are the standard costs for a typical test. $2.00 30.00 Direct materials (2 test tubes @ $1.00 per tube) Direct labor (1 hour @ $30 per hour) Variable overhead (1 hour @ $6.00 per hour) Fixed overhead (1 hour @$12.00 per hour) Total standard cost per test 6.00 12.00 $50.00 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 800 tests were conducted, resulted in the following, $1,512 Direct materials (1,680 test tubes) Direct labor (824 hours) 23,896 4,320 Variable overhead a $ Materials price variance Labor price variance $ Labor quantity variance $ e Textbook and Media List of Accounts Submit Answer Attempts: 0 of 3 used Suve for Later (b) The parts of this question must be completed in order. This part will be available when you complete the part above, (c) The parts of this question must be completed in order. This part will be available when you complete the part above. 26