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A population of values has a normal distribution with μ=77.7μ=77.7 and σ=35.8σ=35.8. A random sample of...

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Statistics

A population of values has a normal distribution withμ=77.7μ=77.7 and σ=35.8σ=35.8. A random sample of size n=240n=240is drawn.

  1. Find the probability that a single randomly selected value isbetween 74.2 and 82.6. Round your answer to four decimalplaces.
    P(74.2
  2. Find the probability that a sample of size n=240n=240 israndomly selected with a mean between 74.2 and 82.6. Round youranswer to four decimal places.
    P(74.2

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