anetsm97 anetsm97
  • 15-04-2024
  • Business
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Assume the cholesterol levels in a certain population have a mean (µ) = 200 and standard deviation (σ) =24. The cholesterol levels for a random sample of n = 9 individuals are measured and the sample mean x is determined.

What is the z-score for a sample mean x = 180?

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