Find the probability that a single randomly selected value

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A population of values has a normal distribution with μ = 12.1 and σ = 30.3.  You intend to draw a random sample of size n=23.

Find the probability that a single randomly selected value is greater than -7.5. 

P(X > -7.5) = 

Find the probability that a sample of size n = 23 is randomly selected with a mean greater than -7.5. 

P(M > -7.5) = 

Enter your answers as numbers accurate to 4 decimal places. Answers obtained using exact z-scores or z-scores rounded to 3 decimal places are accepted.

Reference no: EM131932236

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