To compare a group mean to a population, compute the:
A) z score.
B) z statistic.
C) mean square error.
D) proportionate reduction in error.

Name: To compare a group mean to a population, compute the: A) z score. B) z statistic. C) mean square error. D) proportionate reduction in error.
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Quizplus · Accepted Answer

The z statistic is used to compare a group mean to a population mean, assuming the population standard deviation is known. It measures how many standard deviations an element is from the mean.

To Compare a Group Mean to a Population, Compute The