A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z = -2.60. Assuming that the researcher is using a two-tailed test, what is the correct statistical decision? Explain your answer.

Reject the null hypothesis with α = .05 but not with α = .01.

Reject the null hypothesis with either α = .05 or α= .01.

Fail to reject the null hypothesis with either α = .05 or α = .01.

Answer rating: 100% (QA)

If a005 the critical value is Z0025196 check standard ... View the full answer