Moderate to severe damage to their voices

Reference no: EM131137964

In a random sample of 120 cheerleaders, 54 had suffered moderate to severe damage to their voices. With 90% confidence, what can we say about the maximum error if we use the sample proportion 54/120 = 0.45 as an estimate of the true proportion of cheerleaders who are afflicted in this way?

Reference no: EM131137964

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