SOLUTION: Out of the 200 insomniacs, 98 reported regularly watching The Late Show with David Letterman before they began to count sheep.Calculate the margin of error for a 78% confidence int
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Question 452767: Out of the 200 insomniacs, 98 reported regularly watching The Late Show with David Letterman before they began to count sheep.Calculate the margin of error for a 78% confidence interval of the true proportion of insomniacs who regularly watch David Letterman before counting sheep.
A. 0.164
B. 0.056
C. 0.043
D. 0.136
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Out of the 200 insomniacs, 98 reported regularly watching The Late Show with David Letterman before they began to count sheep.Calculate the margin of error for a 78% confidence interval of the true proportion of insomniacs who regularly watch David Letterman before counting sheep.
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p = 98/200 = 0.49
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ME = z*sqrt[pq/n]
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ME = 1.226528*sqrt[0.49*0.51/200] = 0.0434
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Cheers,
Stan H.
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A. 0.164
B. 0.056
C. 0.043
D. 0.136
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