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When asked if marijuana should be legal or illegal, .47 said "legal" (N=100). What is the...

When asked if marijuana should be legal or illegal, .47 said "legal" (N=100). What is the 95% confidence interval (use the +-2 shortcut)

The CI is  between  and

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Answer #1

z value for 95% CI is 1.96 as P(-1.96<z<1.96)=0.95

So Margin of Error is

So CI is

Hence the CI is between 0.372 and 0.568

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