Audit Report for PRESIDENTIAL ELECTORS

Proportion of the total number of votes for this contest that were cast within this county: 100.0%

See additional statistical information below...

Batch Seq Threshold Random Priority Type Batches Ballots Contest Ballots Alan Keyes / Brian Rohrbough America's Independent Barack Obama / Joe Biden Democratic Bob Barr / Wayne A. Root Libertarian Bradford Lyttle / Abraham Bassford U.S. Pacifist Brian Moore / Stewart A. Alexander Socialist, USA Charles Jay / Dan Sallis, Jr. Boston Tea Chuck Baldwin / Darrell L. Castle Constitution Cynthia McKinney / Rosa A. Clemente Green Frank Edward McEnulty / David Mangan Unaffiliated Gene C. Amondson / Leroy J. Pletten Prohibition Gloria La Riva / Robert Moses Socialism and Liberation James Harris / Alyson Kennedy Socialist Workers John McCain / Sarah Palin Republican Jonathan E. Allen / Jeffrey D. Stath HeartQuake '08 Over Ralph Nader / Matt Gonzalez Unaffiliated Thomas Robert Stevens / Alden Link Objectivist Under
Totals 0 16 2 1 0 5 1 4 0 2 1 2 24 3 5 4 3 2
000001 0.823223 ED p008_lat_ed_001 None 25 0 5 1 0 0 3 0 3 0 1 1 1 0 2 2 2 2 2
000002 0.823223 ED p014_lat_ed_002 None 25 0 9 1 1 0 1 1 1 0 1 0 1 6 1 0 1 1 0
000005 0.823223 ED p011_lat_ed_003 None 25 0 2 0 0 0 1 0 0 0 0 0 0 18 0 3 1 0 0

Audit statistics

The "Number of audit units to audit" is based on the NEGEXP method, which is very efficient and requires selecting larger audit units with higher probability than smaller ones. The numbers given here are based on a confidence level of 75%. I.e. they are designed so the audit will either 1) find a discrepancy and call for an escalation or full hand recount, or 2) reduce the risk of confirming an incorrect outcome to (100 - 75)%, even if the tally system has been manipulated. A maximum "within-precinct-miscount" of 20% is assumed. See On Auditing Elections When Precincts Have Different Sizes, by Javed A. Aslam, Raluca A. Popa and Ronald L. Rivest


Contest: PRESIDENTIAL ELECTORS

Number of precincts: 3
Total number of votes cast:  75
Average number of votes/precinct: 25.0
Median number of votes/precinct: 25
Maximum number of votes/precinct: 25
Minimum number of votes/precinct: 25
Ratio of max/min: 1.0
margin =  10.6666666667 percent, 8.0 votes
s =  0.2  (maximum within-precinct-miscount)
alpha =  0.25  (confidence is 1 - alpha:  0.75 )

Rule of Thumb says:
    5.1986038542 precincts.
    expected workload =  250.0 votes counted.

APR says:
    b = 0.8 precincts needed to hold corruption
    u =  3 precincts to audit
    expected workload =  75.0 votes
    confidence level to find one of b =  0.912
    bmin = 1
    confidence level to find one of bmin =  1.0

SAFE says:
    bmin = 1
    Number of precincts to audit = u = 3
    Confidence level achieved =  1.0
    expected workload =  75.0

Negexp says:
    w = 5.77078016356
    largest probability =  0.823223304703
    smallest probability =  0.823223304703
    expected number of precincts audited =  2.46966991411
    expected workload =  61.7417478528 votes counted

PPEBWR says:
    t =  5
    largest total probability =  0.868312757202
    smallest total probability =  0.868312757202
    expected number of precincts audited = 2.6049382716
    expected workload =  65.1234567901 votes counted.
    max difference from negexp =  0.0450894524983