taxes Property Tax

School and Appraisal Districts Property Value Study 2013 Report

2013 Confidence Interval Detail
101/Harris
101-919/Spring ISD

Category Summary

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

Stratum
Variance
A 967,369,124 0.9697 997,596,292 90 14,072 .012360053
A 938,104,033 0.9759 961,270,656 81 9,736 .013221367
A 958,686,830 0.9985 960,127,021 86 7,722 .012192181
A 1,002,361,695 1.0179 984,734,940 84 5,099 .009403413
B 161,403,175 0.8213 196,521,582 8 42 .017342004
B 189,661,157 0.9148 207,325,270 6 29 .038865910
B 127,906,990 0.8585 148,988,923 8 13 .020087590
B 223,235,493 0.9602 232,488,537 6 13 .014503597
F1 432,059,963 0.9647 447,869,766 10 614 .013166941
F1 402,097,966 1.0153 396,038,576 10 203 .004392349
F1 461,123,352 1.0108 456,196,431 9 107 .003171900
F1 514,810,684 0.9667 532,544,413 8 43 .007352743
L1 140,025,980 1.0073 139,011,198 10 1,222 .016350413
L1 145,482,722 0.9668 150,478,612 9 175 .002497952
L1 125,794,385 0.9988 125,945,520 8 44 .002451151
L1 193,933,314 0.9692 200,096,279 5 16 .004082305
Random Totals: 6,984,056,863   7,137,234,016 438 39,150  
Catg D1 Exception Values: 4,883,178   4,875,409      
Total Test Values (4): 6,988,940,041   7,142,109,425      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 357,105,471

Confidence Interval Values (5)

State Lower Limit: 6,785,003,954 (State Test Value minus Margin of Error Percent)
Local Test Value: 6,988,940,041 (Within Confidence Interval)
State Upper Limit: 7,499,214,896 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 7,696,773,102 (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