Weighted Sum practice

1
Weighted Sum practice

• EDTEC 296
• 03/16/05

2
Weighted Sum Ranking

• Summarized on Jones pp. 169-170
• We will simplify a bit, not incorporate the pair
  ranking

3
Example Jones step 0

• Lets select four possible places to take a
  vacation

4
Example Jones step 1

• Then come up with 10 criteria/attributes/aspects
  important to us when thinking about a vacation

5
Example simplifying Jones steps 2 3

• Then assign weights to the criteria from 1 to 10
  its relative, each criteria must have a
  different weight

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Example Jones step 4

• Well build the matrix

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Example simplifying Jones step 5

• Now well assign a ranking from 0-10 for each
  vacation, each criteria

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Example Jones step 6 7

• Now we multiply the assigned values by the
  criteria weights
• Then add the weighted values to get the totals

9
Example Jones step 8 9

• Come up with the rankings based on weighted sums
• Sanity check do the results resonate?