taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
084/Galveston
084-908/Hitchcock ISD

Category Summary

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

Stratum
Variance
A 96,165,117 0.9275 103,682,067 23 1,454 .031604986
A 114,966,442 0.9771 117,660,876 61 797 .010037444
A 87,028,515 0.9175 94,853,967 13 277 .018321016
A 162,367,061 1.0025 161,962,156 17 245 .009681011
C1 11,907,365 0.9100 13,085,016 8 1,029 .075834946
C1 11,143,760 0.9225 12,079,957 6 157 .033804958
C1 10,600,410 0.9628 11,009,981 8 101 .045540259
C1 11,211,500 0.8965 12,505,856 7 50 .017680595
F1 11,999,389 1.0962 10,946,350 10 87 .006817210
F1 12,251,228 0.7934 15,441,427 8 32 .364330304
F1 12,442,900 0.9100 13,673,516 4 9 .062020285
Random Totals: 542,083,687   566,901,169 165 4,238  
Catg D1 Exception Values: 1,402,691   1,399,825      
Catg F1 Exception Values: 11,643,950   12,830,864      
Total Test Values (4): 555,130,328   581,131,858      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 29,056,592

Confidence Interval Values (5)

State Lower Limit: 552,075,266 (State Test Value minus Margin of Error Percent)
Local Test Value: 555,130,328 (Within Confidence Interval)
State Upper Limit: 610,188,450 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 580,959,180 (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