The weight distribution of parcels sent in a certain manner is normal with mean value 17 lb and standard deviation 3.7 Ib. The parcel service wishes to establish a weight value c beyond which there will be a surcharge. A USE SALT What value of c is such that 99% of all parcels are at least 1 lb under the surcharge weight? (Round your answer to four decimal places.) C = Ib

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