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2011 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 22,174,331 0.9585 23,134,409 10 1,095 .016664800
A 22,695,800 0.9082 24,989,870 10 634 .034670384
A 22,472,991 0.9937 22,615,468 10 419 .027089139
A 22,867,371 0.9791 23,355,501 10 233 .013987423
D3 22,071,799 1.0018 22,032,141 21 1,481 .000696414
F1 9,545,849 0.9745 9,795,638 10 135 .009675948
F1 10,187,148 1.0199 9,988,379 8 31 .003640648
F1 7,999,724 0.9618 8,317,451 5 9 .002016861
F1 11,544,407 1.0027 11,513,321 2 5 .003041204
G1 32,549,807 0.9945 32,729,821 7 29 .055119786
G1 33,911,007 1.0122 33,502,279 4 8 .004542706
G1 27,278,499 1.0013 27,243,083 3 4 .001683297
G1 29,481,327 1.0004 29,469,539 2 3 .002577833
L1 4,016,213 1.0258 3,915,201 9 106 .037563485
L1 3,045,059 1.1092 2,745,275 8 22 .039443361
L1 10,319,245 0.9837 10,490,236 6 17 .028658964
Random Totals: 292,160,577   295,837,612 125 4,231  
Catg D1 Exception Values: 14,676,925   16,695,473      
Catg L1 Exception Values: 4,392,291   4,198,746      
Total Test Values (4): 311,229,793   316,731,831      

Margin of Error

Margin of Error Percent: 5.0000001
Margin of Error Value: 15,836,592

Confidence Interval Values (5)

State Lower Limit: 300,895,239 (State Test Value minus Margin of Error Percent)
Local Test Value: 311,229,793 (Within Confidence Interval)
State Upper Limit: 332,568,423 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 320,511,764 (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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