SOLUTION: A two-tailed test is conducted at the 5% significance level. Which of the z-scores below is the smallest one that leads to rejection of the null hypothesis? A. 1.12 B. 1.

Question 939173: A two-tailed test is conducted at the 5% significance level. Which of the z-scores below is the smallest one that leads to rejection of the null hypothesis?
A. 1.12
B. 1.48
C. 1.84
D. 2.15
Answer by ewatrrr(24785) (Show Source): You can put this solution on YOUR website!
= CI z = value
90% z =1.645
92% z = 1.751
95% z = 1.96 ****is the critical value of z
98% z = 2.326
99% z = 2.576
....
D. test stat z = 2.15 will reject hypothesis
(too far to the right to support it) see below
...
For the normal distribution: Below: z = 0, z = � 1, z= �2 , z= �3 are plotted.
...
z = 2.15 outside of x = 1.96
...

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