SOLUTION: Suppose I want to estimate the proportion of Americans who watch TV. So I collected a random sample of 100 Americans and proportion for my sample was 0.42. Find the 95% CI.

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Question 634685: Suppose I want to estimate the proportion of Americans who watch TV. So I collected a random sample of 100 Americans and proportion for my sample was 0.42. Find the 95% CI.
Answer by stanbon(57323) About Me  (Show Source):
You can put this solution on YOUR website!
So I collected a random sample of 100 Americans and proportion for my sample was 0.42. Find the 95% CI.
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p-hat = 0.42
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E = 1.96*sqrt(0.42*0.58/100) = 0.0967
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95%CI: 0.42-0.0967 < p < 0.42+0.0967
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Cheers,
Stan H.