EXIT POLL RESPONSE OPTIMIZATION MODEL
6/7/05 10:04 PM
Objective:
Determine values of constrained variables required to derive
the target Kerry/Bush percentage split using aggregate exit
poll response data.
Constraints on Precinct Variables:
1-Response rate: constrained to weighted average (Min,
Max).
2-Kerry percentages constrained to the range (Min, Max)
3-Alpha (K/B response ratio) constrained to weighted average.
4-WPE set to E-M actuals (default) or user input.
TARGET INPUT
Kerry 2-party vote 48.77%
Bush 2-party vote 51.23%
Wtd Avg Response 53.0%
Wtd Avg Alpha (K/B) 1.12
RESPONSE INPUT CONSTRAINTS
1250 Strong Bush Strong Kerry
Prcts 40 415 540 165 90
KERRY WIN%
Min 0% 20% 40% 60% 80%
Max 20% 40% 60% 80% 100%
RESPONSE
Min 1% 1% 1% 1% 1%
Max 100% 100% 100% 100% 100%
ALPHA
Min 0.10 0.10 0.10 0.10 0.10
Max 100.00 100.00 100.00 100.00 100.00
WPE
E-M -10.0% -6.1% -8.5% -5.9% 0.3%
Min -10.0% -6.1% -8.5% -5.9% 0.3%
Max -10.0% -6.1% -8.5% -5.9% 0.3%
OPTIMIZER OUTPUT SUMMARY
POLL Pct Votes
Kerry 52.16% 63.11
Bush 47.84% 57.89
Bush needed 55.46% of refusers to match his vote
PRECINCTS
Number 40 415 540 165 90 Wtd Average
Weights 3.2% 33.2% 43.2% 13.2% 7.2%
Resp. 12.4% 37.4% 58.8% 72.0% 73.0% 53.0%
Dev -40.6% -15.6% 5.8% 19.0% 20.0%
ALPHA
K/B 1.22 1.09 1.16 1.11 1.00 1.12
Dev 9% -3% 4% -1% -11% 0%
2-PARTY VOTE
Kerry 16.7% 38.7% 46.4% 68.2% 88.2% 48.77%
Bush 83.3% 61.3% 53.6% 31.8% 11.8% 51.23%
Votes (mm)
Kerry 0.65 15.53 24.26 10.89 7.68 59.01
Bush 3.23 24.64 28.02 5.08 1.03 61.99
Diff -2.58 -9.11 -3.76 5.82 6.65 -2.98
EXIT POLL
Kerry 21.7% 41.7% 50.7% 71.2% 88.0% 52.16%
Bush 78.3% 58.3% 49.3% 28.8% 12.0% 47.84%
Votes (mm)
Kerry 0.84 16.76 26.48 11.37 7.67 63.11
Bush 3.03 23.41 25.79 4.61 1.04 57.89
Diff -2.19 -6.66 0.68 6.76 6.63 5.22
WPE -10.0% -6.1% -8.5% -5.9% 0.3% -6.77%
E-M -10.0% -6.1% -8.5% -5.9% 0.3% -6.77%
Diff 0.0% 0.0% 0.0% 0.0% 0.0% 0.0%
OPTIMIZATION MODEL
Categ. HighB Bush Even Kerry HighK . Total/Avg
Prcts 40 415 540 165 90 1250
ALPHA
K/B 1.22 1.09 1.16 1.11 1.00 1.12
AvgDev 9% -3% 4% -1% -11% 0%
RESPONDERS
Total 5 155 318 119 66 663
Pct 12.37% 37.40% 58.85% 72.04% 72.98% 53.0%
Kerry 1 65 161 85 58 369
Pct 22% 42% 51% 71% 88% 52.16%
Bush 4 90 157 34 8 293
Pct 78% 58% 49% 29% 12% 47.84%
REFUSERS
Total 35 260 222 46 24 587
Pct 87.63% 62.60% 41.15% 27.96% 27.02% 47.0%
Kerry 6 96 90 28 22 240
Pct 16% 37% 40% 61% 89% 44.5%
Bush 29 164 133 18 3 347
Pct 84% 63% 60% 39% 11% 55.5%
VOTE
Kerry 7 160 251 113 79 610
Pct 16.7% 38.7% 46.4% 68.2% 88.2% 48.77%
Bush 33 255 289 52 11 640
Pct 83.3% 61.3% 53.6% 31.8% 11.8% 51.23%
WPE
Kv-Bv -66.6% -22.7% -7.2% 36.4% 76.4% -2.46%
Kp-Bp -56.6% -16.6% 1.3% 42.3% 76.1% 4.31%
WPE -10.0% -6.1% -8.5% -5.9% 0.3% -6.77%
E-M WPE -10.0% -6.1% -8.5% -5.9% 0.3% -6.77%