2009 Confidence Interval Detail
101/Harris
101-912/Houston ISD
Category Summary
| (1) Category |
(1) Local Value |
(1) Stratum Ratio |
(1) State Value |
(2) Sample Size |
(3) Total Parcels |
Stratum Variance |
|---|---|---|---|---|---|---|
| A | 13,623,118,919 | 0.9970 | 13,664,111,253 | 70 | 127,688 | .027126312 |
| A | 14,385,029,699 | 0.9837 | 14,623,390,972 | 74 | 61,586 | .016430888 |
| A | 14,899,866,656 | 0.9711 | 15,343,287,670 | 75 | 31,779 | .009195571 |
| A | 15,810,325,846 | 0.9329 | 16,947,503,319 | 75 | 12,152 | .023564938 |
| B | 2,316,220,177 | 0.6903 | 3,355,381,975 | 7 | 4,258 | .058909246 |
| B | 2,224,546,354 | 0.9613 | 2,314,102,105 | 8 | 327 | .004593894 |
| B | 2,476,265,249 | 0.9342 | 2,650,679,993 | 8 | 126 | .006294382 |
| B | 2,348,480,692 | 1.0156 | 2,312,407,141 | 6 | 58 | .001756347 |
| C | 838,701,662 | 0.9094 | 922,258,260 | 15 | 18,107 | .040794319 |
| C | 783,576,280 | 0.8698 | 900,869,487 | 21 | 3,395 | .035971203 |
| C | 828,423,894 | 0.8986 | 921,905,068 | 12 | 954 | .032890020 |
| C | 805,803,987 | 0.9387 | 858,425,468 | 8 | 139 | .033397589 |
| D3 | 387,770,020 | 0.9588 | 404,432,645 | 10 | 1,212 | .016979593 |
| F1 | 7,799,496,091 | 0.8776 | 8,887,301,836 | 46 | 9,406 | .030349599 |
| F1 | 7,587,979,656 | 0.8840 | 8,583,687,394 | 15 | 1,398 | .027137069 |
| F1 | 7,263,913,379 | 0.8685 | 8,363,745,975 | 16 | 259 | .037820704 |
| F1 | 6,646,002,977 | 0.9532 | 6,972,306,942 | 15 | 49 | .011189816 |
| L1 | 2,261,263,189 | 0.9471 | 2,387,565,399 | 8 | 13,243 | .007909093 |
| L1 | 2,220,057,267 | 0.9463 | 2,346,039,593 | 9 | 1,606 | .011118341 |
| L1 | 2,206,194,787 | 0.9524 | 2,316,458,197 | 8 | 405 | .004691697 |
| L1 | 2,306,842,470 | 0.9711 | 2,375,494,254 | 7 | 103 | .003346670 |
| Random Totals: | 110,019,879,251 | 117,451,354,946 | 513 | 288,250 | ||
| Catg D1 Exception Values: | 389,873 | 250,233 | ||||
| Total Test Values (4): | 110,020,269,124 | 117,451,605,179 |
Margin of Error
| Margin of Error Percent: | 5.0000000 |
|---|---|
| Margin of Error Value: | 5,872,580,259 |
Confidence Interval Values (5)
| Local Test Value: | 110,020,269,124 | (Outside Confidence Interval) |
|---|---|---|
| State Lower Limit: | 111,579,024,920 | (State Test Value minus Margin of Error Percent) |
| State Upper Limit: | 123,324,185,438 | (State Test Value plus Margin of Error Percent) |
| Value Assigned (6): | 117,355,833,669 | (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