8.31 For a given variable, imagine we know that the population mean is 1014 and the standard...
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8.31 For a given variable, imagine we know that the population mean is 1014 and the standard deviation is 136. A sample mean of 1057 is obtained. Calculate the z statistic for this mean, using each of the following sample sizes:
a. 12
b. 39
c. 188
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Related Book For 
Essentials Of Statistics For The Behavioral Sciences
ISBN: 9781319247195
5th Edition
Authors: Susan A. Nolan, Thomas Heinzen
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