A random sample of 11 students provided the following age data: 25 19 20 21 19...
A random sample of 11 students provided the following age data: 25 19 20 21 19 23 22 19 33 21 24
Find the z-score for data value . (Round your answer to three decimal places.)
Homework Answers
From the given data :
19,19,19,20,21,21,22,23,24,25,33
sample mean(xbar)=
xi/n=246/11=22.3636
Sample standard deviation(S)=
(xi-xbar)/(n-1)=
[(19-22.3636)^2+...+(33-22.3636)^2]/(11-1))=4.081
Now Z score =(x,-xbar)/s
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