Question
According to Responsys, the retailer Neiman Marcus sent an average of 534 e-mails to each of their customers in a recent year. Assume that the
According to Responsys, the retailer Neiman Marcus sent an average of 534 e-mails to each of their customers in a recent year. Assume that the standard deviation for the number of e-mails per customer that year was 122. A random sample of 30 Neiman Marcus customers was selected. What is the probability that the average number of e-mails sent to each of these customers in 2011 exceeded 570?
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A First Course In Fuzzy Logic
Authors: Hung T Nguyen, Carol L Walker, Elbert A Walker
4th Edition
0429012608, 9780429012600
