2009 Confidence Interval Detail
101/Harris
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 | 1,878,071,260 | 0.9804 | 1,915,617,360 | 76 | 17,240 | .024864518 |
| A | 1,419,328,774 | 0.9865 | 1,438,751,925 | 55 | 9,947 | .015693518 |
| A | 1,551,526,406 | 0.9718 | 1,596,549,090 | 76 | 8,171 | .010745322 |
| A | 1,757,374,457 | 0.9469 | 1,855,924,023 | 55 | 4,984 | .015809811 |
| B | 164,204,854 | 1.0050 | 163,387,914 | 5 | 24 | .000957805 |
| B | 117,675,176 | 0.9748 | 120,717,251 | 4 | 8 | .001208228 |
| B | 193,113,640 | 1.0404 | 185,614,802 | 4 | 9 | .006646331 |
| B | 161,668,745 | 0.9989 | 161,846,776 | 3 | 6 | .000986898 |
| C | 43,316,073 | 1.0311 | 42,009,575 | 7 | 1,054 | .001163352 |
| C | 65,002,667 | 0.9879 | 65,798,833 | 9 | 226 | .011515412 |
| C | 70,368,580 | 0.8661 | 81,247,639 | 7 | 68 | .020950350 |
| C | 100,288,864 | 1.0530 | 95,241,086 | 5 | 24 | .003239874 |
| D3 | 251,358,315 | 1.0000 | 251,358,315 | 20 | 702 | .008680934 |
| F1 | 788,438,223 | 0.9123 | 864,231,309 | 15 | 567 | .034006711 |
| F1 | 893,240,786 | 0.9587 | 931,720,857 | 15 | 145 | .003874554 |
| F1 | 785,384,466 | 0.9615 | 816,832,518 | 15 | 36 | .002524093 |
| L1 | 209,920,410 | 0.9235 | 227,309,594 | 8 | 1,271 | .017338780 |
| L1 | 213,093,189 | 0.9213 | 231,296,200 | 8 | 136 | .002291328 |
| L1 | 202,841,728 | 0.9389 | 216,041,887 | 6 | 24 | .016949252 |
| Random Totals: | 10,866,216,613 | 11,261,496,954 | 393 | 44,642 | ||
| Catg D1 Exception Values: | 13,310,460 | 4,753,559 | ||||
| Catg F1 Exception Values: | 639,115,080 | 626,775,000 | ||||
| Catg L1 Exception Values: | 166,970,068 | 186,801,204 | ||||
| Total Test Values (4): | 11,685,612,221 | 12,079,826,717 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 603,991,336 |
Confidence Interval Values (5)
| State Lower Limit: | 11,475,835,381 | (State Test Value minus Margin of Error Percent) |
|---|---|---|
| Local Test Value: | 11,685,612,221 | (Within Confidence Interval) |
| State Upper Limit: | 12,683,818,053 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 12,068,368,092 | (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