3. Gradian Corporation manufactures lamps. It has set up the following standards per finished unit for direct materials and direct manufacturing labor. Direct Materials \\( \\quad: 10 \\mathrm{gr} \\). at \\( \\$ 4.50 \\) per gr. Direct Labor \\( \\quad: 0.5 \\) hour at \\( \\$ 30 \\) per hour The number of finished units budgeted for January 2019 was 10,\\( 000 ; 9,850 \\) units were actually produced. Actual results in Januaro 2019 were: Direct Materials \\( 98,055 \\mathrm{gr} \\). used \\[ 1 h=31.5 \\$ \\] Direct Labor : 4,900 hours \\( \\$ 154,350 \\) issume that there was no beginning inventory of either direct materials or finished units. During the month, aterials purchases amounted to \\( 100 \\mathrm{~kg} \\). at a total cost of \\( \\$ 465,000 \\). a. Compute the January 2019 price and efficiency yariances of direct materials and direct labor. (20 pts) b. Comment on the January 2019 price and efficiency variances. (5 pts)