If the cutoffs for a z test are 2.58 and 2.58, determine whether you would reject or

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If the cutoffs for a z test are −2.58 and 2.58, determine whether you would reject or fail to reject the null hypothesis in each of the following cases: 

a. z = −0.94 

b. z = 2.12 

c. A z score for which 49.6% of the data fall between z and the mean

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