(See Solution) A call centre wants to estimate the proportion of customers who engage a telephone representative for more than 15 minutes. If you were to
Question: A call centre wants to estimate the proportion of customers who engage a telephone representative for more than 15 minutes. If you were to undertake a study to answer this question, clearly specify the steps that you would take to establish a 90% confidence interval of this proportion.
Deliverable: Word Document 
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(Steps Shown) The U.S. Food and Drug Administration (FDA) is responsible
Confidence Interval for Mean Calculator - MathCracker.com