(Step-by-Step) A normally distributed population has µ = 70 and σ = 15. For this population, what proportion of the scores have values between 65 and 75? If random


Question:

A normally distributed population has µ = 70 and σ = 15.

  1. For this population, what proportion of the scores have values between 65 and 75?
  2. If random samples of size n = 9 are selected from this population, what proportion of the sample means will have values between 65 and 75?

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