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Online customer service is a key element to successful online retailing. According to a marketing survey, 37.5% of online customers take advantage of the online
Online customer service is a key element to successful online retailing. According to a marketing survey, 37.5% of online customers take advantage of the online customer service. Random samples of 200 customers are selected.
a) What is the population mean of all possible sample proportions? (Explain/show how you obtain your answer.)
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