SOLUTION: When 400 college students are randomly selected and surveyed, it is found that 100 own a car. Find a 88% confidence interval for the true proportion of all college students who own
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Question 855567: When 400 college students are randomly selected and surveyed, it is found that 100 own a car. Find a 88% confidence interval for the true proportion of all college students who own a car. Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! When 400 college students are randomly selected and surveyed, it is found that 100 own a car. Find a 88% confidence interval for the true proportion of all college students who own a car.
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sample proportion:: 100/400 = 0.25
ME = 1.5548*sqrt[0.25*0.75/400] = 0.0337
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88%CI:: 0.25-0.0337 < p < 0.25+0.0337
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Cheers,
Stan H.
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