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" Data reliability The data in this bulletin are estimates from a scientifically selected probability sample. There are two types of errors possible in an estimate based on a sample survey, sampling and nonsampling. Sampling errors occur because observations... "
Persons of Spanish Origin in the United States - Page 55
by United States. Bureau of the Census - 1977
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Monthly Labor Review, Volume 102

United States. Bureau of Labor Statistics - 1979 - 704 pages
...here, based on a national sample of 56,000 households, may differ somewhat from the figures that would have been obtained if a complete census had been taken, using the same questionnaire and procedures. In addition to sampling variability, the data also may be subject to...
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Current Population Reports: Special studies. Series P-23

1979 - 1098 pages
...estimates in this report are based on a sample, they may differ somewhat from the figures that would have been obtained if a complete census had been taken using the same questionnaires, instructions, and enumerators. There are two types of errors possible in an estimate...
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Committee Prints

United States. Congress. Joint Economic Committee - 1948 - 2112 pages
...estimates Since the estimates are based on a sample, they may differ somewhat from the figures that would have been obtained if a complete census had been taken...the same schedules, instructions, and enumerators. The following table presents the approximate sampling variability of monthly estimates of selected...
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Employment and Unemployment: Initial Report on Employment and ..., Volume 7

United States. Congress. Joint Economic Committee - 1949 - 70 pages
...estimates Since the estimates are based on a sample, they may differ somewhat from the figures that would have been obtained if a complete census had been taken...the same schedules, instructions, and enumerators. The following table presents the approximate sampling variability of monthly estimates of selected...
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Social Security Bulletin: Annual statistical supplement

1988 - 372 pages
...Error Since SIPP estimates are based on a sample, they may diner somewhat from the figures that would have been obtained if a complete census had been taken using the same questionnaire, instructions, and enumerators. The uncertainty that arises from using a sample is referred...
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Social Security Bulletin: Annual statistical supplement

1989 - 382 pages
...Because SIPP estimates are based on a sample, they may differ somewhat from the figures that would have been obtained if a complete census had been taken using the same questionnaire, instructions, and enumerators. The uncertainty that arises from using a sample is referred...
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Social Security Bulletin: Annual statistical supplement

1987 - 342 pages
...Error Since SIPP estimates are based on a sample, they may differ somewhat from the figures that would have been obtained if a complete census had been taken using the same questionnaire, instructions, and enumerators. The uncertainty that arises from using a sample is referred...
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Health Statistics

National Health Survey (U.S.) - 1958 - 48 pages
...Estimates Since the estimates are based on a sample, they will differ somewhat from the figures that would have been obtained if a complete census had been taken using the same schedules, instructions, and interviewing personnel and procedures. As in any survey, the results are also subject to measurement...
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1956 National Housing Inventory, Volumes 1-3

United States. Bureau of the Census - 1958 - 806 pages
...— Since the estimates are based on a sample, they may differ somewhat from the figures that would have been obtained if a complete census had been taken, using the same questionnaires. Instructions, and enumerators. The standard error Is primarily a measure of sampling...
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Current Population Reports: Labor force. Series P-50

1947 - 656 pages
...estimates.— Since the estimates are based on a sample, they may differ somewhat from the figures that would have been obtained if a complete census had been taken...the same schedules, Instructions, and enumerators. The following table presents the approximate sampling variability of monthly estimates of selected...
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