taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
084/Galveston
084-910/Clear Creek ISD

Category Summary

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

Stratum
Variance
A 887,931,358 0.9352 949,456,114 260 6,656 .010858116
A 1,070,515,876 0.9648 1,109,572,840 247 5,489 .010773164
A 1,904,932,545 0.9687 1,966,483,478 256 7,622 .009161107
A 1,972,221,653 0.9753 2,022,169,233 217 4,799 .009388774
F1 141,148,240 1.0711 131,778,769 10 371 .013960393
F1 156,257,870 0.9833 158,911,695 10 136 .073124895
F1 141,417,639 1.0511 134,542,516 8 51 .010674203
F1 158,231,950 0.9187 172,234,625 8 20 .102549386
Random Totals: 6,432,657,131   6,645,149,270 1,016 25,144  
Catg D1 Exception Values: 245,640   246,147      
Total Test Values (4): 6,432,902,771   6,645,395,417      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 332,269,770

Confidence Interval Values (5)

State Lower Limit: 6,313,125,647 (State Test Value minus Margin of Error Percent)
Local Test Value: 6,432,902,771 (Within Confidence Interval)
State Upper Limit: 6,977,665,187 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 6,079,033,757 (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