taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
237/Waller
237-905/Royal ISD

Category Summary

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

Stratum
Variance
A 41,893,811 0.7910 52,963,099 10 735 .050312169
A 46,532,472 1.0534 44,173,602 7 453 .037847468
A 51,903,831 0.8771 59,176,640 11 317 .028239885
A 66,257,265 0.9515 69,634,540 10 232 .011771182
E 173,033,458 0.9347 185,121,919 20 1,365 .035977759
F1 24,917,841 1.0044 24,808,683 9 139 .002537063
F1 22,069,715 1.0020 22,025,664 8 41 .002191471
F1 30,696,522 1.0058 30,519,509 7 25 .013647775
F1 22,728,210 0.9895 22,969,389 2 4 .000158990
L1 60,435,480 0.9981 60,550,526 9 101 .006618608
L1 44,299,390 1.0778 41,101,679 6 13 .003553410
L1 64,353,710 1.0042 64,084,555 4 7 .001837873
Random Totals: 649,121,705   677,129,805 103 3,432  
Catg D1 Exception Values: 13,398,485   9,820,132      
Catg F1 Exception Values: 44,177,060   44,538,503      
Catg L1 Exception Values: 89,278,960   92,026,506      
Total Test Values (4): 795,976,210   823,514,946      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 41,175,747

Confidence Interval Values (5)

State Lower Limit: 782,339,199 (State Test Value minus Margin of Error Percent)
Local Test Value: 795,976,210 (Within Confidence Interval)
State Upper Limit: 864,690,693 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,040,851,132 (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