2007 Confidence Interval Detail
237/Waller
101-914/Katy ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 2,628,005,126 | 0.9669 | 2,717,969,931 | 40 | 19,865 | .002825025 |
| A | 2,627,924,768 | 0.9873 | 2,661,728,723 | 58 | 14,145 | .003398939 |
| A | 2,627,885,808 | 0.9666 | 2,718,690,056 | 60 | 10,387 | .014798445 |
| A | 2,627,871,641 | 0.9422 | 2,789,080,494 | 57 | 6,274 | .005566167 |
| B | 130,355,559 | 0.9167 | 142,200,893 | 5 | 19 | .019277815 |
| B | 126,572,989 | 0.9132 | 138,603,799 | 5 | 10 | .011353899 |
| B | 139,222,955 | 0.9870 | 141,056,692 | 4 | 8 | .010252407 |
| B | 108,632,110 | 0.9902 | 109,707,241 | 3 | 4 | .012690793 |
| C | 80,734,017 | 0.9440 | 85,523,323 | 7 | 2,367 | .010416755 |
| C | 80,939,829 | 0.9481 | 85,370,561 | 8 | 454 | .018995852 |
| C | 81,368,491 | 1.0079 | 80,730,718 | 7 | 110 | .010688175 |
| C | 79,803,517 | 0.9818 | 81,282,865 | 6 | 33 | .065878309 |
| D3 | 287,646,808 | 0.7689 | 374,101,714 | 10 | 1,757 | .154019511 |
| F1 | 711,364,114 | 0.9295 | 765,319,111 | 7 | 581 | .085091630 |
| F1 | 713,111,264 | 0.8304 | 858,756,339 | 7 | 155 | .115903956 |
| F1 | 731,061,517 | 1.1463 | 637,757,583 | 6 | 54 | .031150224 |
| F1 | 682,793,035 | 0.9254 | 737,835,568 | 4 | 9 | .035903575 |
| L1 | 251,679,315 | 1.0263 | 245,229,772 | 9 | 1,908 | .006683849 |
| L1 | 253,851,962 | 0.9597 | 264,511,787 | 7 | 231 | .059959770 |
| L1 | 254,203,283 | 0.9352 | 271,817,026 | 6 | 46 | .004533440 |
| Random Totals: | 15,225,028,108 | 15,907,274,196 | 316 | 58,417 | ||
| Catg D1 Exception Values: | 6,880,103 | 6,041,614 | ||||
| Catg L1 Exception Values: | 199,321,495 | 238,806,957 | ||||
| Total Test Values (4): | 15,431,229,706 | 16,152,122,767 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 807,606,138 |
Confidence Interval Values (5)
| State Lower Limit: | 15,344,516,629 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 15,431,229,706 | (Within Confidence Interval) |
| State Upper Limit: | 16,959,728,905 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 15,654,942,784 | (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