SOLUTION: kindly Help me with the following. I get a bit confused with the two-tailed hypothesis tests. I will be very grateful. Suppose that for a two-tailed hypothesis test the critical

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Question 629557: kindly Help me with the following. I get a bit confused with the two-tailed hypothesis tests. I will be very grateful.
Suppose that for a two-tailed hypothesis test the critical values are z0 = 1.88 and −z0 = −1.88. State whether you would reject or fail to reject the null hypothesis if the standardized test statistic z has the values listed below.
You dont have to give me the answers, a push in the right direction will do.
(a)z=1.72
(b)z = −2.03
Thank you very much.

Answer by ewatrrr(24785)   (Show Source): You can put this solution on YOUR website!
 

Hi,

Note: critical values: z0 = 1.88 and −z0 = −1.88 plotted on the Standard NOrmal curve below



If the test statistic lies beyond these either to the right or left, the

null hypothesis is rejected.

(a)z = 1.72 does not lie beyond to the right

(b)z = −2.03  lies beyond to the left 

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