Z-scores X (test scores) = 3, 5, 8, 8, 9, 4, 7, 8, 6, 7, 10 %3D •Calculate the mean of X Σ •Calculate the variance of x •Calculate the standard deviation of x •Calculate the z-score for the first and...

PLEASE HELP ME FIND THE POPULATION MEAN, I AM SO STUCK

Z-scores<br>X (test scores) = 3, 5, 8, 8, 9, 4, 7, 8, 6, 7, 10<br>%3D<br>•Calculate the mean of X<br>Σ<br>•Calculate the variance of x<br>•Calculate the standard deviation of x<br>•Calculate the z-score for the first and last person<br>•Are they statistically significantly different from<br>the mean?<br>E(x-x)²<br>2<br>X, -x<br>z =<br>S =<br>n-1<br>

Extracted text: Z-scores X (test scores) = 3, 5, 8, 8, 9, 4, 7, 8, 6, 7, 10 %3D •Calculate the mean of X Σ •Calculate the variance of x •Calculate the standard deviation of x •Calculate the z-score for the first and last person •Are they statistically significantly different from the mean? E(x-x)² 2 X, -x z = S = n-1

Jun 11, 2022

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Z-scores X (test scores) = 3, 5, 8, 8, 9, 4, 7, 8, 6, 7, 10 %3D •Calculate the mean of X Σ •Calculate the variance of x •Calculate the standard deviation of x •Calculate the z-score for the first and...

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