You want to estimate the proportion of kids between the ages of 12 and 15 who have tried marijuana. You take a random sample of 130 Maryland students and find that 23% of the sample report having tried marijuana. Last year, the known population of 12-15 year olds who had ever tried marijuana was 29%. Test the alternative hypothesis that the population proportion of Maryland students who have smoked marijuana is different than 29%. Use an alpha level of 0.01. What is your alternative hypothesis? $$H_1: p \neq 0.29$$ $$H_1: p \neq 0.23$$ $$H_1: p < 0.23$$ $$H_1: p < 0.29$$
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