A set of 50 data values has a mean of 48 and a variance of 9. 1. Find the ...

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A set of 50 data values has a mean of 48 and a variance of 9. 1. Find the standard score (z) for a data value of 43 ...

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(I) z = (x - μ)/s/√n) = (43 - 48)/(3/√50) = -11.7851 ...
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    Asetof50valueshasameanof48andavarianceof9.doc