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2008 Confidence Interval Detail
245/Willacy
245-903/Raymondville ISD

Category Summary

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

Stratum
Variance
A 20,577,278 0.9056 22,722,259 14 1,084 .010096456
A 21,099,217 0.9317 22,645,934 13 629 .009265411
A 21,389,765 0.9746 21,947,225 13 429 .007622018
A 21,865,172 0.9872 22,148,675 12 238 .012235030
D3 19,738,337 0.9854 20,030,786 18 1,458 .011732589
F1 9,200,656 1.0508 8,755,858 8 153 .009523596
F1 8,697,549 0.9545 9,112,152 6 35 .004170170
F1 6,621,718 0.9834 6,733,494 4 8 .000622015
F1 8,791,473 0.9711 9,053,108 2 4 .002989024
G1 58,787,300 0.8160 72,043,260 5 19 .211166554
G1 55,832,425 1.0055 55,527,026 3 5 .000117942
G1 68,066,841 0.9987 68,155,443 3 4 .000000184
L1 3,546,413 0.9591 3,697,647 7 94 .014235615
L1 3,449,864 0.9758 3,535,421 5 22 .021942653
L1 5,159,923 1.0146 5,085,672 3 8 .016816563
Random Totals: 332,823,931   351,193,960 116 4,190  
Catg D1 Exception Values: 14,417,906   16,775,419      
Catg G1 Exception Values: 45,462,801   45,494,097      
Catg L1 Exception Values: 6,370,450   6,644,001      
Total Test Values (4): 399,075,088   420,107,477      

Margin of Error

Margin of Error Percent: 6.0293583
Margin of Error Value: 25,329,785

Confidence Interval Values (5)

State Lower Limit: 394,777,692 (State Test Value minus Margin of Error Percent)
Local Test Value: 399,075,088 (Within Confidence Interval)
State Upper Limit: 445,437,262 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 425,447,911 (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

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