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2011 Confidence Interval Detail
101/Harris
101-907/Cypress-Fairbanks ISD

Category Summary

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

Stratum
Variance
A 5,091,884,061 1.0280 4,953,194,612 48 48,169 .015362388
A 4,934,146,739 1.0133 4,869,383,933 49 33,905 .014492127
A 4,958,727,552 0.9712 5,105,773,839 50 25,456 .006287710
A 5,110,010,940 0.9825 5,201,028,947 50 14,899 .009751249
B 394,156,859 0.8636 456,411,370 12 60 .044462888
B 382,937,105 0.9680 395,596,183 8 27 .013608918
B 554,108,843 0.9247 599,230,932 11 27 .005469327
B 332,492,610 1.0112 328,809,939 6 13 .012186344
C 122,965,268 0.9059 135,738,236 11 3,013 .048443872
C 152,551,866 0.9806 155,569,922 10 679 .027738853
C 144,623,642 0.9839 146,990,184 11 238 .025421627
C 137,903,237 1.0050 137,217,151 10 65 .021116271
D3 348,663,268 0.9563 364,596,118 15 1,135 .014075585
F1 1,593,726,188 0.9342 1,705,979,649 12 1,975 .026396512
F1 1,634,345,009 0.9594 1,703,507,410 10 695 .006788772
F1 1,598,572,116 0.9586 1,667,611,221 10 270 .002131833
F1 1,742,854,297 0.9241 1,886,001,836 10 96 .025340927
L1 706,290,603 0.9752 724,252,054 10 3,486 .003838820
L1 702,065,635 0.9979 703,543,075 10 527 .008105895
L1 798,712,348 0.9646 828,024,412 9 200 .002462823
L1 758,358,678 0.9775 775,814,504 8 55 .003405471
Random Totals: 32,200,096,864   32,844,275,527 370 134,990  
Catg J Exception Values: 141,454,402   135,056,404      
Catg D1 Exception Values: 10,185,525   10,213,814      
Total Test Values (4): 32,351,736,791   32,989,545,745      

Margin of Error

Margin of Error Percent: 5.0000000
Margin of Error Value: 1,649,477,287

Confidence Interval Values (5)

State Lower Limit: 31,340,068,458 (State Test Value minus Margin of Error Percent)
Local Test Value: 32,351,736,791 (Within Confidence Interval)
State Upper Limit: 34,639,023,032 (State Test Value plus Margin of Error Percent)
Value Assigned (6): 34,363,549,499 (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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