Question

A researcher conducts a hypothesis test to evaluate the effect of

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 isusing a two-tailed test, what is the correct statistical decision?

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

b. Reject the null hypothesis with either a = .05 or a = .01.

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

d. cannot answer without additional information

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