taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 Confidence Interval Detail
114/Howard
114-901/Big Spring ISD

Category Summary

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

Stratum
Variance
A 137,877,998 0.8905 154,832,115 32 3,527 .166490987
A 161,312,672 0.8556 188,537,485 58 2,068 .038950321
A 143,231,259 0.9371 152,845,224 56 1,068 .027734195
A 153,994,116 1.0013 153,794,184 40 620 .004853535
F1 50,012,052 1.0193 49,065,096 12 435 .020378247
F1 53,516,049 1.0021 53,403,901 11 123 .001382645
F1 47,242,281 1.0073 46,899,912 7 21 .000946323
F1 68,476,910 0.9864 69,421,036 4 9 .000424128
G1 68,489,031 0.9496 72,124,085 10 116 .026110083
G1 68,583,290 1.0360 66,200,087 9 44 .097037080
G1 71,006,289 1.0376 68,433,201 7 18 .008419351
G1 63,772,062 0.9861 64,670,989 3 5 .011537596
L1 21,580,255 0.9731 22,176,811 11 267 .017928771
L1 17,042,574 1.0386 16,409,180 8 44 .097326149
L1 27,050,554 1.0257 26,372,774 6 21 .002466127
L1 15,092,131 1.0536 14,324,346 2 3 .033770298
Random Totals: 1,168,279,523   1,219,510,426 276 8,389  
Catg J Exception Values: 15,581,165   15,827,749      
Catg D1 Exception Values: 14,976,107   18,330,395      
Total Test Values (4): 1,198,836,795   1,253,668,570      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 62,683,428

Confidence Interval Values (5)

State Lower Limit: 1,190,985,142 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,198,836,795 (Within Confidence Interval)
State Upper Limit: 1,316,351,998 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,807,182,389 (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