SOLUTION: Which condition must be met to conduct a test for the difference in two sample means using a z-statistic?
a)Data must be at least of nominal scale.
b)Populations must be norma
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-> SOLUTION: Which condition must be met to conduct a test for the difference in two sample means using a z-statistic?
a)Data must be at least of nominal scale.
b)Populations must be norma
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Question 888678: Which condition must be met to conduct a test for the difference in two sample means using a z-statistic?
a)Data must be at least of nominal scale.
b)Populations must be normal.
c)Standard deviations of the two populations must be known.
d)Samples are dependent.
You can put this solution on YOUR website! i believe the z score requires the standard deviation of the population be known.
that points to selection c.
