Financial Data for Delta Air Lines, Inc
(amounts in millions, except per-share amounts)
	For Year Ended December 31
	2013	2014	2015	2016	2017
Current Assets	9651	12465	9056	7451	7844
Total Assets	52252	54121	53134	51261	53292
Common Shares Outstanding	851.443	825.258	778.784	730.738	707.198
Long-Term Debt	9795	8561	6766	6201	6592
Net Income (loss) before Interest and Taxes	3802	2922	7837	6952	6114
Total Liabilities	40609	45308	42284	38974	39382
Net Income (Loss)	10540	659	4526	4373	3577
Cash Flow Provided by Operations	4504	4947	7927	7205	5148
Retained Earnings (deficit)	-2081	-3855	348	267	2015
Sales	37773	40362	40704	39639	41244
Shareholers' Equity	11643	8813	10850	12287	13910
Interest Expenses	852	650	481	388	396
Current Liabilities	14152	16879	17526	15239	18573
Market Price Per Share	27.47	49.19	50.69	49.19	56.00

1. Compute the value of each the following risk ratios.

   • (1)

     Current ratio (at the end of 2013-2017)

   • (2)

     Operating cash flow to current liabilities ratio (for 2013-2017)

   • (3)

     Liabilities to assets ratio (at the end of 2013-2017)

   • (4)

     Long-term debt to long-term capital ratio (at the end of 2013-2017)

   • (5)

     Operating cash flow to total liabilities ratio (for 2013-2017)

   • (6)

     Interest coverage ratio (for 2013*2017)

2. Compute the value of Altmans Z-score for Delta Air Lines for each year from 2000 to 2004.