SOLUTION: A random sample of 700 workers in a particular city found 168 workers who had donated to charity. Find a 95% confidence interval for the true percent of workers in this city who ha
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Question 1076338: A random sample of 700 workers in a particular city found 168 workers who had donated to charity. Find a 95% confidence interval for the true percent of workers in this city who have donated to charity.
Express your results as percents. Round to at least two decimal places. Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! 95% CI is 0.24+/- 1.96 * sqrt (0.24*0.76)/168; the half interval is 0.032
(0.208, 0.272)
The 0.24 comes from the fraction 168/700.
