7RelativeResourceManager - x z Example: Y~N(10,2) 1. Find...

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Calculating Z score Suppose you have a distribution with the variable X such that X~N( , ). Remember that the symbol, X~N( , ), means the variable X is approximately Normally Distributed with a mean of and a standard deviation of . To find out how many standard deviation a particular variable value, X=x, is in the distribution we calculate the z-score or z number using the formula
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Unformatted text preview: x z Example: Y~N(10,2) 1. Find how many standard deviation Y=16 is in its distribution 16 10 2 3 z z So 16 is 3 standard deviations from the mean in Y s distribution. 2. Find how many standard deviation Y=13 is in its distribution 13 10 2 1.50 z z So 13 is 1.50 standard deviation from the mean in Y s distribution....
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This note was uploaded on 04/02/2011 for the course STAT 250 taught by Professor Sims during the Spring '08 term at George Mason.

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