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The town of KnowWearSpatial, U.S.A. operates a rubbish waste disposal facility that is overloaded if its 4763 households discard waste with weights having a mean that exceeds 27.27 lb/wk. For many different weeks, it is found that the samples of 4763 households have weights that are normally distributed with a mean of 26.94 lb and a standard deviation of 12.55 lb.

What is the proportion of weeks in which the waste disposal facility is overloaded?
P(M > 27.27) = 

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