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Question 4 [5 A normal population has a mean of 20.0 and a standard deviation of 4.0. (Refer to a Z-Score table} a. Compute the

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Question 4 [5 A normal population has a mean of 20.0 and a standard deviation of 4.0. (Refer to a Z-Score table} a. Compute the z-value associated with 25.0. z-value = 25-20f4 = 1.25 b. What proportion of the population is between 20.0 and 25.0? I:. What proportion of the population is less than 18.0

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