Answer and Explanation:
The computation of given question is shown below:-
  Hi-Test Company
 Weighted-average method
 Equivalent units
Particulars Physical units Material Conversion costs
Units to be accounted for
Beginning work-in-progress 2,000
Production started 28,000
Total units 30,000
Units accounted for:
1. Completed and transferred
out 23,000 23,000 23,000
  (23,000 × 100%)
Ending work-in-progress 7,000  7,000 2,800
  (7,000 × 100%) (7,000 × 40%) 
2. Total units 30,000 30,000 25,800
 Materials Conversion costs Total costs
Costs to account for:
Beginning work in 
progress $45,000 $56,320 $101,320
  ($25,600 + $30,720) 
Costs added during 
period $375,000 $341,000 $716,000
Total costs $420,000 $397,320 $817,320
÷
Total equivalent unit
of production $30,000 $25,800
3. Cost per equivalent unit $14.00 $15.40
Cost accounted for
4. Completed and transferred
out  $322,000 $354,200 $676,200
 (23,000 × $14.00) (2,800 × $15.40)
7. Ending work in progress $98,000 $43,120 $141,120
  (30,000 × $14.00) (25,800 × $15.40)
Total cost $420,000 $397,320 $817,320