SOLUTION: A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z=-2.60. Assuming that the reseacher is using a two-tailed test, what
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Question 667267: A researcher conducts a hypothesis test to evaluate the effect of a treatment. The hypothesis test produces a z=-2.60. Assuming that the reseacher is using a two-tailed test, what is the correct statistical decision? Answer by ewatrrr(24785) (Show Source):
Hi,
The hypothesis test produces a z= -2.60 ⇒ reject Ho
a a/2 crtical regions
80% 0.2 10% z <-1.28155 z >+1.28155
90% 0.1 5% z <-1.645 z >+1.645
92% 0.8 4% z <-1.751 z >+1.751
95% 0.05 2.50% z <-1.96 z >+1.96
98% 0.02 1% z <-2.326 z >+2.326
99% 0.01 0.50% z<-2.576 z >+2.576
