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A random sample of 5 students was selected to take the GRE. Their scores are: 160, 175, 163, 149, 153 What is the z-score corresponding

A random sample of 5 students was selected to take the GRE. Their scores are:

160, 175, 163, 149, 153

What is the z-score corresponding to the sample mean of these students' scores?

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