Answer:
a.
Date Account Title Debit Credit
Jan. 31 Product Warranty Expense $15,160
Product Warranty Payable $15,160
Working:
Product warranty expense = Amount of sales for January * Estimated product warranty
= 379,000 * 4%
= $15,160
b.
Date Account Title Debit Credit
Jan. 31 Product Warranty Payable $355
Supplies $250
Wages payable $105
The costs of the warranty will be taken from the liability account for warranties because the warranty payable account represents that the company owes warranty repairs which the customer just came to collect.