Holiday Hours
Quick Start for:

2006 Confidence Interval Detail
240/Webb
240-901/Laredo ISD

Category Summary

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

Stratum
Variance
A 262,392,902 0.9643 272,107,126 19 6,195 .023245849
A 262,209,917 0.9332 280,979,337 22 4,076 .018306387
A 262,400,745 0.9609 273,078,099 27 2,971 .010841560
A 261,993,474 0.9667 271,018,386 31 1,830 .011072494
B 32,140,804 0.9657 33,282,390 7 225 .070187621
B 32,129,618 1.0026 32,046,298 7 134 .017517671
B 32,321,732 0.9312 34,709,764 6 78 .016010135
B 31,479,830 1.0312 30,527,376 6 32 .003344940
F1 140,480,113 0.9734 144,318,998 7 964 .012175756
F1 140,193,672 0.9291 150,891,908 7 338 .008493608
F1 141,689,811 0.9645 146,904,936 8 130 .000374647
F1 138,431,206 1.0144 136,466,094 4 9 .000819372
L1 39,899,978 0.9909 40,266,402 7 834 .005508762
L1 39,847,991 0.9773 40,773,551 7 209 .002631452
L1 40,245,471 0.9806 41,041,680 7 61 .004018149
L1 39,168,543 0.9110 42,995,108 4 11 .012791307
Random Totals: 1,897,025,807   1,971,407,453 176 18,097  
Catg D1 Exception Values: 1,740   2,315      
Total Test Values (4): 1,897,027,547   1,971,409,768      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 98,570,488

Confidence Interval Values (5)

State Lower Limit: 1,872,839,280 (State Test Value minus Margin of Error Percent)
Local Test Value: 1,897,027,547 (Within Confidence Interval)
State Upper Limit: 2,069,980,256 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 1,883,008,169 (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

Required Plug-ins