Wally Company makes dog beds. Last year Wally incurred the following costs related to quality control. What is Wally Company's cost of quality for internal failures? 1. Repairs for dog beds under warranty 2,438 2. Seamstress training 986 3. Wages of part-time inspector of products 1,064 4. Cost of replacements given to customers for defective dog beds 1,682 5. Product liability insurance 3,418 6. Inspection of sewing machines as part of routine maintenance 3,291 7. Inspection of fabric and thread for defects 1,518 8. Repairing defective dog beds prior to sale 1,509