If the critical values or cutoffs for a two tailed z test ar

If the critical values, or cutoffs, for a two tailed z test are -2.17 and +2.17, determine whether you would reject or fall to reject the null hypothesis in each of the following cases: z = -0.87 z = 2.19

Solution

We would reject Ho if the z value is NOT BETWEEN the values -2.17 and 2.17.

Otherwise, if z is between them, then we failt o reject it.

Thus,

4a: FAIL TO REJECT HO [ANSWER]

4b: REJECT HO [ANSWER]