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psychology majors, the historical data...

For a standardized psychology examination intended for psychology majors, the historical data show that scores have a mean of

and a standard deviation of

. The grading process of this year's exam has just begun. The average score of the

exams graded so far is

. What is the probability that a sample of

exams will have a mean score of

or more if the exam scores follow the same distribution as in the past?

Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.

and a standard deviation of

. The grading process of this year's exam has just begun. The average score of the

exams graded so far is

. What is the probability that a sample of

exams will have a mean score of

or more if the exam scores follow the same distribution as in the past?

Carry your intermediate computations to at least four decimal places. Round your answer to at least three decimal places.

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