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