Unformatted text preview: and the standard deviation is 2. You know that that distribution is normal. You observe an xvalue of 6. Find the zscore for the observed x=6. Is the value unusual? EXPLAIN! σ μ= x z = 2 10 6= 2 4= 2.0 Apply 689599.7 or ztable. Look for value as or more extreme. ztable area lower than 2 is 0.0228 or 2.28%. By 689599.7, you would find the area is 2.5% or 0.025. Thus, the value does seem somewhat unusual....
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This note was uploaded on 05/05/2010 for the course STAT 226 taught by Professor Abbey during the Fall '08 term at Iowa State.
 Fall '08
 ABBEY

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