What is probability that average will exceed given value

Reference no: EM131372447

According to BusinessWeek, profits in the energy sector have been rising, with one company averaging $3.42 monthly per share.

Assume this is an average from a population with standard deviation of $1.5. If a random sample of 30 months is selected, what is the probability that its average will exceed $4.00?

Reference no: EM131372447

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