When a computed z-value (for a test for differences between two percentages),say 4.51,is larger than the standard z-value,say 1.96,then this amounts to
A)support for the null hypothesis;the two percentages are different.
B)no support for the null hypothesis;the two percentages are not different.
C)support for the null hypothesis;the two percentages is not different.
D)no support for the null hypothesis;the two percentages are different.
E)None of these are correct.

Question

Quizplus · Accepted Answer

A computed z-value larger than the standard z-value indicates that the difference between the two percentages is statistically significant, and thus there is no support for the null hypothesis. Choice D correctly reflects this interpretation.

When a Computed Z-Value (For a Test for Differences Between