2008 Confidence Interval Detail
101/Harris
101-919/Spring ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 1,146,638,311 | 1.0127 | 1,132,258,626 | 31 | 12,014 | .014910077 |
| A | 1,142,232,882 | 1.0047 | 1,136,889,501 | 32 | 9,591 | .010422044 |
| A | 1,137,361,104 | 1.0083 | 1,127,998,715 | 36 | 7,832 | .011429140 |
| A | 1,112,546,705 | 1.0071 | 1,104,703,311 | 31 | 5,029 | .009816148 |
| B | 161,673,809 | 0.9098 | 177,702,582 | 6 | 34 | .012666167 |
| B | 196,242,188 | 0.7799 | 251,624,808 | 6 | 27 | .044824831 |
| B | 229,021,687 | 0.8804 | 260,133,674 | 6 | 15 | .013031277 |
| F1 | 367,511,359 | 0.8402 | 437,409,378 | 11 | 530 | .063298557 |
| F1 | 411,476,351 | 0.9485 | 433,817,977 | 10 | 186 | .012411455 |
| F1 | 373,226,604 | 0.8840 | 422,202,041 | 7 | 80 | .072914370 |
| F1 | 462,681,932 | 0.9101 | 508,385,817 | 8 | 39 | .020692329 |
| L1 | 133,965,969 | 1.0147 | 132,025,199 | 7 | 1,256 | .002578138 |
| L1 | 124,972,186 | 0.9800 | 127,522,639 | 8 | 149 | .011768960 |
| L1 | 127,037,343 | 0.9884 | 128,528,271 | 7 | 45 | .006378698 |
| L1 | 132,935,916 | 0.9981 | 133,188,975 | 4 | 9 | .000560188 |
| Random Totals: | 7,259,524,346 | 7,514,391,514 | 210 | 36,836 | ||
| Catg D1 Exception Values: | 13,311,663 | 13,323,874 | ||||
| Catg B Exception Values: | 30,024,620 | 31,602,475 | ||||
| Total Test Values (4): | 7,302,860,629 | 7,559,317,863 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 377,965,893 |
Confidence Interval Values (5)
| State Lower Limit: | 7,181,351,970 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 7,302,860,629 | (Within Confidence Interval) |
| State Upper Limit: | 7,937,283,756 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 8,173,565,482 | (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