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According to a publication, 12.3% of 18 to 25-year-olds were users of marijuana in 2000. A recent poll of 1211 randomly selected 18 to 25-year-olds
According to a publication, 12.3% of 18 to 25-year-olds were users of marijuana in 2000. A recent poll of 1211 randomly selected 18 to 25-year-olds revealed that 178 currently use marijuana. At the 5% significance level, do the data provide sufficient evidence to conclude that the percentage of 18 to 25-year-olds who currently use marijuana has changed from the 2000 percentage of 12.3%? Use the one-proportion z-test to perform the appropriate hypothesis test, after checking the conditions for the procedure.
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