Instruction 7-7
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.
-Referring to Instruction 7-7,the standard error of all possible sample proportions is ________.
Correct Answer:
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Online customer service is a key
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Q138: Instruction 7-7
Online customer service is a key
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