Current Population Reports: Special studies. Series P-23U.S. Department of Commerce, Bureau of the Census, 1978 |
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Edisi yang lain - Lihat semua
Istilah dan frasa umum
American Indian average births Black Carpool Census CENTRAL CENTRAL CENTRAL CENTRAL CENTRAL CITIES CENTRAL CITIES CITIES characteristics children under 18 CITIES CITIES CITIES CLERICAL AND SALES computer specialists County Total CRAFT WKRS Current Population Reports Current Population Survey dard dard error employed engineering in 1976 Environmental scientists estimate Excluding Spanish heritage Excluding Spanish origin FARM February FEMALE field of science field of study Government Printing Office groups high school housing units husband and wife inmigration jurisdiction KINDRED WORKERS MALE MANAG L WKRS MANAG'L marriage married couples Mathematical specialists METROPOLITAN AREAS migration National Science Foundation Numbers in thousands occupation percent percentage physical scientists Pima County PLACE OF PLACE POLITAN poverty level PROFIL AND MANAG proportion RACE RELATED CHILDREN SALES WKRS science or engineering SMSA's social scientists South standard error Statistics survey TED METRO tists U.S. Bureau U.S. Department U.S. Government Printing White wives WKRS AND OPERATIVES women
Bagian yang populer
Halaman 43 - 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 come only from a sample and not from an entire population. The sample used for this survey is one of a number of possible samples of the same size that could have been selected using the sample design. Estimates derived from the different samples...
Halaman 40 - For each person in the sample 1 5 years old and over, questions were asked on the amount of money income received in the preceding calendar year from each of the following sources: (1 ) money wages or salary; (2) net income from nonfarm self-employment; (3) net income from farm selfemployment; (4) Social Security...
Halaman 4 - 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 schedules, instructions and enumerators.
Halaman 42 - The poverty thresholds are updated every year to reflect changes in the Consumer Price Index (CPI).
Halaman 43 - Nonsampling variability. Nonsampling errors can be attributed to many sources, eg, inability to obtain information about all cases in the sample, definitional difficulties, differences in the interpretation of questions, inability or unwillingness...
Halaman 16 - CPS estimates in this report were 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.
Halaman 4 - ... inability or unwillingness to provide correct information on the part of respondents, inability to recall information, errors made in collection such as in recording or coding the data, errors made in processing the data, errors made in estimating values for missing data, and failure to represent all units with the sample (under coverage).
Halaman 16 - ... figure by less than the standard error. The chances are about 95 out of 100 that the difference would be less than twice the standard error. The figures presented in the tables are approximations to the standard errors of various estimates shown in this report.