When a Computed Z Value (For a Test for Differences

Multiple Choice

When a computed z value (for a test for differences between two percentages) , 4.21, is larger than the standard z value, 1.96, then this amounts to:

A) support for the null hypothesis; the two percentages are differen.t
B) no support for the null hypothesis; the two percentages are NOT different.
C) support for the null hypothesis; the two percentages are NOT different.
D) no support for the null hypothesis; the two percentages are different.
E) having to recalculate as the z value is not utilized for testing the differences between two percentages.