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17 The workers at XYZ, Inc. took a random sample of 800 manhole covers and found thatA) (37.26,42.74) B) (015,.085) 40 of them were defective. What is the 95 percent Conf. Interval for p, the true proportion of defective manhole covers, based on this sample? C) (035, 065) D) (047, 053) 18

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