The mean attention span for adults in a certain village is 15 min

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The mean attention span for adults in a certain village is 15 min, with a standard deviation of 6.4. What is the probability of randomly selecting a sample of 30 scores which has a mean attention span equal to or greater than 17 min?

  • 6 years ago
The mean attention span for adults in a certain village is 15 min
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