SOLUTION: With a mean of 180 recorders and a standard deviation of 60. Determine the number of recorders needed to meet a 90 percent customer demand

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Question 911972: With a mean of 180 recorders and a standard deviation of 60. Determine the number of recorders needed to meet a 90 percent customer demand
Answer by ewatrrr(24785) About Me  (Show Source):
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60invNorm(.90) + 180 = X, the number of recorders needed to meet a 90 percent customer demand