The z-test for zero difference in two means:
A)is generally the preferred test for means.
B)is rarely suitable for business data.
C)is the most powerful test for means.
D)is not available in Excel's Data Analysis.

Question

Quizplus · Accepted Answer

The z-test for zero difference in two means is rarely suitable for business data because it assumes a known population variance and normally distributed data, conditions that are often not met in business contexts.

The Z-Test for Zero Difference in Two Means