In 2006, the general social survey asked, "in the past 12 months, have you experienced back pain? ." for this question, 475 people said that they did out of 1723 randomly selected people. what is the 95% confidence interval for the proportion of all americans that have experienced back pain in the past 12 months?
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In 2006, the general social survey asked, "in the past 12 months, have you experienced back pain? ."...
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