taxes Property Tax Assistance

2017 Confidence Interval Detail

170/Montgomery
170-903/Montgomery ISD

Category Summary

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

Stratum
Variance
A 1,245,678,008 0.9675 1,287,522,489 200 6,969 .020861648
A 1,275,687,903 0.9829 1,297,881,680 201 3,971 .009666356
A 1,280,034,420 0.9743 1,313,799,056 154 2,645 .016271511
A 1,257,095,613 0.9940 1,264,683,715 60 1,422 .020376153
E 311,974,130 0.9241 337,597,803 15 1,238 .047719289
F1 65,160,114 0.8915 73,090,425 10 217 .153976725
F1 63,512,180 0.9652 65,802,093 10 73 .029569257
F1 55,359,808 0.8800 62,908,873 8 26 .140164647
F1 90,033,980 1.0137 88,817,185 5 18 .005428448
Random Totals: 5,644,536,156   5,792,103,319 663 16,579  
Catg D1 Exception Values: 9,696,248   9,070,468      
Total Test Values (4): 5,654,232,404   5,801,173,787      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 290,058,689

Confidence Interval Values (5)

State Lower Limit: 5,511,115,098 (State Test Value minus Margin of Error Percent)
Local Test Value: 5,654,232,404 (Within Confidence Interval)
State Upper Limit: 6,091,232,476 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 5,537,848,300 (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, D2, E, 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