Legalizing Marijuana Usage
196197). With respect to opinions toward the legalization of the use of marijuana, this document provides only percentages of various population groups as they support legalization, oppose legalization, or have no opinion on the issue. The hypothesis test for the equality of proportions between samples, however, also requires data indicating the numerical size of the samples tested and the numerical size of the tested proportions within those samples.

The Sourcebook of Criminal Justice Statistics (Bureau of Justice Statistics, 1987, p. 196) indicated that the data relative to opinions on the issue of the legalization of the use of marijuana were obtained from National Opinion Research Center data base. The Sourcebook of Criminal Justice Statistics (Bureau of Justice Statistics, 1987, p. 568) indicated further that to numerical size of the total National Opinion Research Center sample in 1973 was 1,504 and in 1987 was 1,466, and that the composition of the samples in relation to gender, race, and age reflected population proportions in the most recent federal census data. Thus, the composition of the 1973 sample was based on 1970 census data, and the composition of the 1987 sample was based on 1980 census data.

The National Opinion Research Center samples included persons 18 years old and older. Thus, in the development of population proportions relevant to the 1970 and 19

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    | Statistical Procedures | Peters Armstrong | 1973 1987 | hypothesis compared opinions | issue 1973 1987 | population proportions | hypothesis compared | issue 1973 | compared opinions | 1987 hypothesis compared | 1973 1987 hypothesis | opinion issue | difference population | estimate difference | 1987 hypothesis | estimate difference population | opinions persons |  
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