Researchers Used Their Knowledge of the Z Distribution to Assert

Multiple Choice

Researchers used their knowledge of the z distribution to assert that some published data might have been "cleaned" or altered in some way in order for test statistics to pass a cutoff at z of 1.96.That cutoff corresponds to observations that happen less than _____ percent of the time.

A) 1
B) 2.5
C) 5
D) 10