Question
A department store, on average, has daily sales of $28,567.95 with a standard deviation of $1,000. On Tuesday, the store sold $35,492.00 worth of goods.
A department store, on average, has daily sales of $28,567.95 with a standard deviation of $1,000. On Tuesday, the store sold $35,492.00 worth of goods. Find Tuesday's z score. Was Tuesday an unusually good day (i.e. is it an outlier)?
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Monthly Problem Gems
Authors: Hongwei Chen
1st Edition
1000402282, 9781000402285
