Question: For a random variable that is normally distributed with mean equal to 1300 and standard deviation equal to 250, determine the probability that a simple

For a random variable that is normally distributed with mean equal to 1300 and standard deviation equal to 250, determine the probability that a simple random sample of 25 items will have a mean that is between 1425 and 1550.

  • A. 0.0049
  • B. 0.9938
  • C. 0.8944
  • D. 0.0994
  • E. none of the above

For a random variable that is normally distributed with mean equal to 1300 and standard deviation equal to 250, determine the probability that a simple random sample of 25 items will have a mean that is greater than 1250.

  • A. 0.1587
  • B. 0.3085
  • C. 0.9938
  • D. 0.8413
  • E. none of the above

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