A population of scores forms a normal distribution with a mean of 180 and a standard deviation of 13. What proportion of the scores have values between 175 and 185? If samples of n = 4 are selected...



  1. A population of scores forms a normal distribution with a mean of 180 and a standard deviation of 13.



  1. What proportion of the scores have values between 175 and 185?

  2. If samples of n = 4 are selected from the population, what proportion of the samples have means between 175 and 185?

  3. If samples of n = 16 are selected from the population, what proportion of the samples will have means between 175 and 185?




Jun 03, 2022
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