2006 CANDIDATES
Debbie Stabenow
Michael Bouchard
David Sole
Leonard Schwartz
Dennis FitzSimons

DATE 1					MOE 2	S 3
NOV 4		41.3	56.7	2.0	+/- 1.8	3044
OCT 30		44.5	53.3	2.2	+/- 1.5	4050
OCT 25		44.3	53.1	2.6	+/- 1.5	4093
OCT 23		44.2	52.9	2.9	+/- 1.5	4265
OCT 11		42.5	54.8	2.8	+/- 1.7	3515
OCT 8		43.6	54.0	2.4	+/- 1.5	4072

DATE 1	POLLSTER				MOE 2	S 3
NOV 4	SURVEY USA	43.8	54.2	2.1	+/- 3.7	687
NOV 2	DETROIT NEWS	42.2	56.7	1.1	+/- 4.0	600
NOV 2	MASON-DIXON	39.8	57.0	3.2	+/- 3.9	625
NOV 2	DETROIT FREE PRESS	38.6	60.2	1.1	+/- 4.2	532
OCT 30	DETROIT NEWS	41.8	56.0	2.2	+/- 4.0	600
OCT 30	DETROIT NEWS	41.8	57.1	1.1	+/- 4.0	600
OCT 25	DETROIT NEWS	42.7	56.2	1.1	+/- 4.0	600
OCT 23	STRATEGIC VISION	45.7	52.2	2.2	+/- 2.8	1200
OCT 22	RASMUSSEN	42.4	57.3	2.1	+/- 4.4	500
OCT 16	ZOGBY/WSJ	46.5	49.3	2.1	+/- 2.9	1150
OCT 11	DETROIT FREE PRESS	40.7	55.8	3.5	+/- 3.9	643
OCT 8	SURVEY USA	42.9	54.1	3.1	+/- 3.5	772
OCT 4	EPIC/MRA	41.2	56.5	2.4	+/- 4.0	600
OCT 3	RASMUSSEN	39.8	57.1	3.1	+/- 4.4	500
SEP 25	ZOGBY/WSJ	45.4	52.4	2.1	+/- 3.1	1000
SEP 17	STRATEGIC VISION	45.4	52.6	2.1	+/- 2.8	1200

NOTES
¹ Date is the last day that the poll was taken. Often polls are embargoed for several days until their release date.
² Margin of Error. MOE is related to sample size, 0.98 divided by the square root of the sample size at 95% confidence (19 times out of 20). For example, a sample of 1000 people has a MOE of +/- 3.1% and a sample of 2000 people has a MOE of +/- 2.2%. For rolling averages, the samples are assumed to be independent, thus sample sizes are aggregated to produce an overall MOE. In practice, some polling firms use lists with repeat calls; in these case, it is more precise to reduct these repeat calls from the overall sample size, thus the actual margin of error might be slightly higher. Example: 5 surveys of 1000 people would normally produce a MOE of +/- 1.4%, if samples were independent. If 25% of calls were repeat calls, however, a more accurate MOE would be based on 4000, not 5000, people, producing a MOE of +/- 1.5%.
³ Sample size.
⁴ Poll numbers exclude undecided voters (and in some cases include estimated for Others), thus are pro-rated to 100%. For example, if the raw poll data shows the Republican candidate with 47%, the Democratic candidate with 41%, Others with 2% and there were 10% undecided, the results excluding undecideds are: Republican 47/90 = 52.2, Democrat 41/90 = 45.6, Others 2/90 = 2.2.

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