taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
043/Collin
043-907/McKinney ISD

Category Summary

(1)
Category
(1)
Local
Value
(1)
Stratum
Ratio
(1)
State
Value
(2)
Sample
Size
(3)
Total
Parcels

Stratum
Variance
A 1,482,222,247 0.9893 1,498,253,560 10 10,545 .003104575
A 1,472,036,281 1.0039 1,466,317,642 10 7,506 .006151019
A 1,462,708,346 0.9987 1,464,612,342 10 5,266 .004089487
A 1,471,264,673 1.0181 1,445,108,214 10 3,184 .007005530
B 82,137,941 0.7924 103,657,169 8 24 .064936828
B 136,187,171 0.8497 160,276,769 7 12 .022801148
F1 311,663,083 0.9133 341,249,407 12 342 .012509627
F1 308,429,691 0.9259 333,113,393 12 125 .046404015
F1 299,110,551 0.9001 332,308,134 9 44 .029145536
F1 282,639,685 0.9895 285,638,893 7 11 .000430273
L1 202,443,796 1.0421 194,265,230 10 666 .005636451
L1 178,297,952 1.0640 167,573,263 8 49 .004395893
L1 214,656,258 0.9757 220,002,314 6 13 .004254760
Random Totals: 7,903,797,675   8,012,376,330 119 27,787  
Catg D1 Exception Values: 5,096,293   4,295,820      
Catg B Exception Values: 217,552,512   257,308,711      
Catg L1 Exception Values: 164,854,178   166,815,396      
Total Test Values (4): 8,291,300,658   8,440,796,257      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 422,039,813

Confidence Interval Values (5)

State Lower Limit: 8,018,756,444 (State Test Value minus Margin of Error Percent)
Local Test Value: 8,291,300,658 (Within Confidence Interval)
State Upper Limit: 8,862,836,070 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 9,019,655,095 (See ISD Summary Worksheet)

Sources:
(1) See Stratified Category Worksheet Reports PTS236, PTS430
(2) Number of parcels sampled by staff
(3) Total Category Parcels from Stratification Report, Appraisal Roll, or Self-report
(4) Includes any parcels in A, B, C, D3, F1, G1, G2, or L1 marked as exception properties
(5) Unstudied categories and sub-categories were not included in the Confidence Interval Values
(6) Includes local value of unstudied property categories and sub-categories