A population of values has a normal distribution with μ=128.5 and σ=39.9. You intend to draw a random sample of size n=31. Find the probability that a sample of size n=31 is randomly selected with a mean less than 106.3. P(M < 106.3) = 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.

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A population of values has a normal distribution with μ=128.5 and σ=39.9. You intend to draw a random sample of size n=31.

Find the probability that a sample of size n=31 is randomly selected with a mean less than 106.3.
P(M < 106.3) =

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.

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