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A random sample of size 625 was selected from a large population with population mean = 15 and population variance 2 = 20.25. Approximate the

A random sample of size 625 was selected from a large population with population mean = 15 and population variance 2 = 20.25. Approximate the probability of selecting a sample that satisfies:

  • sample mean is between 15.2736 and 15.4572
  • X<0.45|X|<0.45

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