taxes Property Tax

School and Appraisal Districts Property Value Study 2015 Report

2015 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 957,591,188 0.9129 1,048,955,185 153 6,135 .028751939
A 1,089,226,958 0.8997 1,210,655,727 100 3,885 .024278503
A 1,231,023,180 0.9437 1,304,464,533 70 2,745 .027077039
A 1,184,462,823 0.9424 1,256,857,834 34 1,444 .027259035
Random Totals: 4,462,304,149   4,820,933,279 357 14,209  
Catg D1 Exception Values: 10,473,336   10,023,200      
Total Test Values (4): 4,472,777,485   4,830,956,479      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 241,547,823

Confidence Interval Values (5)

Local Test Value: 4,472,777,485 (Outside Confidence Interval)
State Lower Limit: 4,589,408,656 (State Test Value minus Margin of Error Percent)
State Upper Limit: 5,072,504,302 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 4,799,082,666 (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