taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
205/San Patricio
205-902/Gregory-Portland CISD

Category Summary

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

Stratum
Variance
A 179,938,892 0.8678 207,350,648 24 1,815 .025483433
A 257,594,417 0.9370 274,913,999 43 1,711 .006191087
A 202,798,108 0.9393 215,903,447 50 1,037 .005958393
A 242,613,121 0.9962 243,538,568 26 678 .009328003
F1 39,557,344 1.0194 38,804,536 9 130 .054692382
F1 23,444,965 1.0659 21,995,464 8 25 .070423365
F1 53,394,379 1.0076 52,991,643 6 29 .030793942
F1 55,041,881 1.0556 52,142,744 3 10 .021187807
Random Totals: 1,054,383,107   1,107,641,049 169 5,435  
Catg D1 Exception Values: 17,784,176   17,309,647      
Total Test Values (4): 1,072,167,283   1,124,950,696      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 56,247,534

Confidence Interval Values (5)

State Lower Limit: 1,068,703,162 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,072,167,283 (Within Confidence Interval)
State Upper Limit: 1,181,198,230 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,654,202,292 (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