Dunder Mifflin had the following balances in selected accounts at the end of 2015 and 2016. 2015 2016 Cash $58,000 $45,000 Short-term investments 46,000 39,000 Accounts receivable 54,000 61,000 Allowance for uncollectible accounts 3,500 5,000 Inventory 78,000 98,000 Accounts payable 91,000 102,000 Wages payable 17,000 25,000 Income tax payable 4,500 6,500 Note payable (due 2022) 100,000 100,000 Sales 415,000 525,000 Cost of goods sold 225,000 304,000 The accounts receivable at the end of 2014 were $50,000 and the allowance for uncollectible accounts was $2,500.

Required: 1. Calculate the acid test ratio for 2015 and 2016 for Dunder Mifflin.

2. Calculate the days sales in receivables for 2015 and 2016 for Dunder Mifflin.

3. Determine whether the acid-test ratio improved or deteriorated from 2015 to 2016.

4. Determine whether the collection period increased or decreased from 2015 to 2016.