You are a research assistant at a zoo.  The question of your study is "Has the proportion of baby zebras born in zoos has changed from 10%?".  Your supervisor asks that you run a hypothesis test using a significance level of 0.05.  From the study, you obtain a z-score of 0.788.  What type of z test is appropriate?  What is the ?      Right, one-tailed test.   = +1.645     Right, one-tailed test.   = -1.645      Left, one-tailed test.   = +1.645     Left, one-tailed test.   = -1.645      Two-tailed test.   = +1.645 and -1.645

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