Labor Day

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2007 Confidence Interval Detail
057/Dallas
057-903/Carrollton-Farmers Branch

Category Summary

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

Stratum
Variance
A 1,289,793,920 0.9860 1,308,107,424 42 10,382 .012466490
A 1,289,696,117 0.9878 1,305,624,739 54 8,165 .003719770
A 1,289,516,353 0.9828 1,312,084,201 53 6,121 .004307308
A 1,289,464,234 0.9829 1,311,897,684 51 3,791 .002054219
B 496,573,436 0.9411 527,652,147 7 70 .008124874
B 495,130,899 0.9489 521,794,603 6 37 .013116351
B 499,599,565 0.9952 502,009,209 5 24 .003425805
B 489,765,338 0.9724 503,666,534 5 15 .001283407
C 97,945,515 1.0224 95,799,604 7 531 .006794870
C 97,707,835 0.9452 103,372,657 7 98 .076420021
C 99,434,588 0.9517 104,481,021 6 45 .019305900
C 95,431,596 1.0115 94,346,610 5 16 .006100374
F1 1,093,933,586 0.8889 1,230,659,901 7 696 .044340783
F1 1,099,895,158 0.9573 1,148,955,560 7 242 .004105061
F1 1,095,348,021 0.9421 1,162,666,406 7 98 .007906535
F1 1,086,549,870 0.8447 1,286,314,514 6 36 .031955156
L1 522,545,235 1.1018 474,265,053 7 1,218 .015825836
L1 525,672,101 1.1722 448,449,156 7 192 .053470800
L1 525,119,393 1.0236 513,012,303 6 62 .062786350
L1 514,949,795 1.0091 510,306,010 6 14 .001548967
Random Totals: 13,994,072,555   14,465,465,336 301 31,853  
Catg D1 Exception Values: 7,993   5,703      
Total Test Values (4): 13,994,080,548   14,465,471,039      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 723,273,552

Confidence Interval Values (5)

State Lower Limit: 13,742,197,487 (State Test Value minus Margin of Error Percent)
Local Test Value: 13,994,080,548 (Within Confidence Interval)
State Upper Limit: 15,188,744,591 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 13,935,492,841 (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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