A one tailed test is a hypothesis test which _____Group of answer choicesrejection region is only in the lower tail of the sampling distributionrejection region is in one tail of the sampling distributionrejection region is in both tails of the sampling distributionrejection region is only in the upper tail of the sampling distribution

A two-tailed test is a hypothesis test in which ___.Group of answer choicesrejection region is in both tails of the sampling distributionrejection region is in one tail of the sampling distributionrejection region is only in the lower tail of the sampling distributionrejection region is only in the upper tail of the sampling distribution

What is the difference between a one-tailed and a two-tailed test? When would you use each (if at all)?

What is the primary difference between a one-tailed and a two-tailed test?  A. The level of significance  B. The number of hypotheses tested  C. The directionality of the hypothesis  D. The sample size

A two-tailed test is performed at a 5% level of significance. The p-value is determined to be 0.09. The null hypothesisGroup of answer choiceshas been designed incorrectlymust be rejectedshould not be rejectedmay or may not be rejected, depending on the sample size

A researcher conducts a hypothesis test to evaluate the effect of a treatment that is expected to increase scores. The hypothesis test produces a z-score of z = 2.37. If the researcher is using a one-tailed test, what is the correct statistical decision?​Group of answer choices​Reject the null hypothesis with α = .05 but not with α = .01.​This cannot be answered without additional information.​Reject the null hypothesis with either α = .05 or α = .01.​Fail to reject the null hypothesis with either α = .05 or α = .01.