A population of values has a normal distribution with ? = 70.8 and ? = 97.5. You intend to draw a random sample of size n = 18. Find the probability that a single randomly selected value is greater than 121.4. P(X > 121.4) = Find the probability that a sample of size n = 18 is randomly selected with a mean greater than 121.4. P(M > 121.4) = 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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4 Z = (121.4 - 70.8) / 97.5 = 0.519 Show more…
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