Decision making and Analytics Class

Perform an Even Swap Analysis for the online commerce sites below. Use the following criteria to make swaps 1) As we raise the defect percent by 1%, we reduce costs by $20 2) If we raise service from Med to Good , this will raise the delivery time by 2 days. If we raise the service from Poor to Good , this will raise the delivery time by 5 days 3) If we raise the delivery time by 1 day, this will lower the cost by $7.50

	Annual Cost	Delivery Time	Percent Defective	Service
Amazon	150	2	3	Good
Walmart	70	5	5	Med
Ebay	200	6	8	Poor
Etsy	90	6	3	Good
Letgo	60	7	5	Med
Craigslist	75	4	4	Poor

Question 6 3 pts

If we first rank all objectives in ascending order, we see that is dominated by and

Question 7 2 pts

If we do an even swap on Annual Cost and Percent Defective and then an even swap on Service and Delivery Time,

The only two companies that remain will be and

Question 8 1 pts

Now do an even swap on Delivery time and Annual Cost.

The best choice will be =

Perform the Analytic Hierarchy Process (AHP) on the following manager judgments. Are these judgments consistent or inconsistent?

	Durability	Warranty	Service	Functionality
Durability	1	4.3	5.6	2
Warranty		1	2.3	0.15
Service			1	0.2
Functionality				1

Question 9 4 pts

What are the approximate weights of each attribute? Report your answer to four decimal places. Include a leading zero ( for example 0.2341)

Durability =

Warranty =

Service =

Functionality =

Question 10 1 pts

The weighted average of the attributes will be

Report your answer to 4 decimals

Question 11 3 pts

The inconsistency index will be

Our random index will be

Therefore, the inconsistency ratio will be

Report your answer to four decimals. Include a leading zero ( for example 0.2341)

Question 12 3 pts

The managers judgments of the hierarchy of the four attributes appears to be (consistent or inconsistent)

This is because the inconsistency ratio is (less than or greater than) the value