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

A. 0.1587

B. 0.3085

C. 0.9938

D. 0.8413

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 9 items will have a mean that is greater than 1500.

A. 0.8413

B. 0.1587

C. 0.0082

D. 0.9918

E. none of the above

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