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Title: A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test ... Post by: Nwere on Mar 19, 2018 A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z-score of z = 2.37 . Assuming that the researcher is using a two-tailed test, what decision should be made?
a. The researcher should reject the null hypothesis with = .05 but not with = .01. b. The researcher should reject the null hypothesis with either = .05 or = .01. c. The researcher should fail to reject H0 with either = .05 or = .01. d. Cannot answer without additional information Question 2 Which of the following accurately describes the effect of increasing the alpha level? a. Increases the standard error and has no effect on the risk of a Type I error b. Decreases the standard error and has no effect on the risk of a Type I error c. Increases the risk of a Type I error and has no effect on the standard error d. Decreases the risk of a Type I error and has no effect on the standard error Title: A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test ... Post by: Michael876 on Mar 19, 2018 A C |