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[ 2009-12-25 23:11:00 | By: qrst685 ] |
More concerned about the mental health fitness
Introduction of computer-assisted telephone survey outdoor gym to investigate the form of probability sampling methods for the proportional stratified random sampling (stratified according to their districts, and then layer the light in all the districts and counties in Beijing the previous year the proportion of the population samples were collected at random (95% confidence level in the next to investigate the error of ± 2.0%). sample the city's 18 districts covering a total of 3429 persons investigation. the basis of the respondents are as follows: 1447 men, accounting for 42.2 percent of women in 1982, accounting for 57.8%. the age distribution: 15 years of age (3.9%) ,16-35-year-old (43.6%) 36-55-year-old (32.6%), 56 years of age (19.9%). Education Distribution: high school and below accounted for 56.9%, college and university degree accounted for 39.4% MA 3.7% and above. major occupation, including the workers / general workers (20.8%), retirees (20.7%), students (15.5%), various types of cadres (11.8%), professional and technical personnel (11.6% ) and so on.
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