SOLUTION: Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:
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Question 634867: Determine the critical region and critical values for z that would be used to test the null hypothesis at the given level of significance, as described in each of the following:
(A) H0:µ=63 and Ha:µ≠63, a=.10
(B) H0:µ≥88 and Ha:µ<88, a=.01
(C) H0:µ≤24 and Ha:µ>24, a=.05 Answer by ewatrrr(24785) (Show Source):
Hi,
a a/2 2-tailed crtical regions
80% 0.2 10% z <-1.28155 z >+1.28155
90% 0.1 5% z <-1.645 z >+1.645
92% 0.08 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
