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A population of values has a normal distribution with =126.1 and =26.8. You intend to draw a
random sample of size n=18.
Find the probability that a single randomly selected value is less than 122.9.
P(X < 122.9) =
Find the probability that a sample of size n=18 is randomly selected with a mean less than
122.9.
P(M < 122.9) =
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 =126.1 and =26.pdf

  • 1. A population of values has a normal distribution with =126.1 and =26.8. You intend to draw a random sample of size n=18. Find the probability that a single randomly selected value is less than 122.9. P(X < 122.9) = Find the probability that a sample of size n=18 is randomly selected with a mean less than 122.9. P(M < 122.9) = 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.