1.Legalization of marijuana:

a)General Social Survey: The 2010 General Social Survey asked 1,259 US residents: "Do you think the use of marijuana should be made legal, or not?" 48% of the respondents said it should be made legal. Answer the following questions about these survey results:

i.Is 48% a sample statistic or a population parameter? Explain.

ii.Construct a 90% confidence interval for the proportion of all US residents who think marijuana should be made legal. Use Minitab. Provide an interpretation for your confidence interval.

iii.A news piece on this survey's findings states, "Majority of Americans think marijuana should be legalized." Based on your confidence interval, is this news piece's statement justified?

b)Prop 19 in California: In a 2010 Survey USA poll, 70% of the 119 respondents between the ages of 18 and 34 said they would vote in the 2010 general election for Prop 19, which would change California law to legalize marijuana and allow it to be regulated and taxed. At a 95% confidence level, this sample has an 8% margin of error. Answer the following questions:

i.Based on just this information, compute the 95% confidence interval for the parameter of interest. Do NOT use Minitab. Do NOT use the applet.

Provide an interpretation for your confidence interval