taxes Property Tax

School and Appraisal Districts Property Value Study 2012 Report

2012 Confidence Interval Detail
237/Waller
237-902/Hempstead ISD

Category Summary

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

Stratum
Variance
A 33,376,362 0.9317 35,823,078 11 762 .011821273
A 37,803,690 0.9890 38,224,156 12 435 .002171015
A 36,996,880 1.0067 36,750,651 10 279 .007642828
A 38,311,315 0.9954 38,488,361 9 171 .001673854
D3 166,150,889 0.9661 171,981,046 15 3,071 .000912555
F1 14,194,150 1.0020 14,165,818 9 132 .011443243
F1 14,714,140 0.9747 15,096,071 10 50 .011931137
F1 13,707,712 0.9688 14,149,166 8 21 .032738423
F1 15,619,980 1.0672 14,636,413 4 8 .007145282
L1 5,763,270 1.0339 5,574,301 9 158 .011756921
L1 6,702,520 0.9848 6,805,971 7 30 .001756019
L1 9,624,120 0.9978 9,645,340 6 8 .002050996
Random Totals: 392,965,028   401,340,372 110 5,125  
Catg D1 Exception Values: 11,361,902   11,295,055      
Total Test Values (4): 404,326,930   412,635,427      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 20,631,771

Confidence Interval Values (5)

State Lower Limit: 392,003,656 (State Test Value minus Margin of Error Percent)
Local Test Value: 404,326,930 (Within Confidence Interval)
State Upper Limit: 433,267,198 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 427,392,029 (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