Thursday
May 28, 2015

Homework Help: statistic

Posted by Nickie on Saturday, January 26, 2013 at 6:46pm.

In a population of exam scores, a score of X  48
corresponds to z1.00 and a score of X  36
corresponds to z  0.50. Find the mean and standard
deviation for the population. (Hint: Sketch the
distribution and locate the two scores on your sketch.)



A sample consists of the following n  6 scores: 2, 7,
4, 6, 4, and 7.
a. Compute the mean and standard deviation for the
sample.
b. Find the z-score for each score in the sample.
c. Transform the original sample into a new sample
with a mean of M  50 and s  10.

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